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642-437 - Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) - Dump Information

Vendor : Cisco
Exam Code : 642-437
Exam Name : Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)
Questions and Answers : 256 Q & A
Updated On : April 24, 2019
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642-437 Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)

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642-437 exam Dumps Source : Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)

Test Code : 642-437
Test Name : Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)
Vendor Name : Cisco
Q&A : 256 Real Questions

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Cisco Implementing Cisco Unified Communications

Virtualization and Cisco Unified Communications | Real Questions and Pass4sure dumps

New FriendsCisco facts core – Meet Cisco UC & Collaboration…you two can be working together much more now…

Inevitable in reality – I think we're going to continue to see a lot more of Cisco’s utility operating on correct of our information middle innovation…it stands to cause of course, we want you to purchase it…so why would we not use it?  That’s the cynical answer – the reality is that makes extra sense than you may also recognise. 


standard headlines without problems overlook the details…but that is where we come in!  This latest episode of TechWiseTV is crammed with geeky goodness and you've got arrived on the shownotes. particulars, links and all the specifics are under the fold – 

Cisco’s leadership in riding primary changes to the ancient TDB PBX always modified the communications panorama and Unified Communications is now where the trade is measured.  in the last few years, Cisco has efficaciously challenged an additional popularity quo with alterations to the records core.  The very equal paradigm transferring consolidation of historically diverse voice and statistics within the communications business is now enjoying out very hastily as the concept of virtualization has emerged as a savior to challenges plaguing the information middle. 

Our challenge for this show worried two issues: Share the particulars you want for making a decision about virtualization of your true-time voice applications was a good movement for you and your enterprise PLUS determine a way to take some very technical ideas with Cisco’s usaproposition and make them effortless to understand – specifically for these of us who aren't constantly thinking too an awful lot about the statistics center.

The aha moment may well be easy to omit.

Cisco entered the information center market no longer to without difficulty create a ‘me too’ server in the mannequin that’s been present for years…however to present a radically evolutionary design with dramatic benefits in energy consumption, scalability, manageability and bottom line charge.   These aren't idle speaking aspects to be confused with claims any supplier would make any given day…however they're backed with selected and interesting technology advancements.

the future is bright certainly – all of these advantages and extra at the moment are obtainable to Cisco UC clients who leverage the Cisco Unified Computing gadget. there is new stuff to gain knowledge of – but it surely is as enjoyable because it is a good your profession and to your company.  be a part of us as we dive into exactly what you need to recognize…the use of phrases and americans that will get you begun on one of the most a good option adjustments you can make to your communications future.

section 1: Unified Communications gets VirtualizedRobb and that i topline the compelling economic benefits of virtualizing Unified Communications and explain what it means on your method and how to get your head round Cisco’s game-changing virtualization technology.

Segment 1

Two hyperlinks to check out for additional suggestions about this complete discipline, for the less technical: try the reputable Introduction web page, for these of you trying to dig into much more meat and taters, go right here…Unified Communications Virtualization

phase 2: Why trade the reputation Quo?James Arias joined me by way of TelePresence to explore the evolution of Unified Communications and reveal how virtualizing it in your facts core ends up in wonderful simplicity.

Tina and James Arias

TWTV74 - 1

Slide 2

Slide 3

Slide 4

5 C Series

Last Slide

segment three: Unified Computing equipment versus MCSIn the lab,  Jimmy Ray and that i display the professionals and cons of the Cisco Unified Computing equipment and display you what you should understand to make the migration. 

Tina and JR

What will also be Virtualized?Unified Communications manager edition 8.0(2)Unified Contact core specific/IPIVR version  8.0(2)Unified Contact center enterprise edition  eight.0(2)Cisco Unified Presence edition  8.0(1)Cisco unity edition  7.0(2)Cisco harmony Connection version  8.0(2

There are specifics to be privy to as not ‘every’ flavor is eligible.

section four: guidelines and ImplementationJimmy Ray and that i proceed their lab session and what you should be aware of for a successful Implementation. 

segment 5: Pulling all of it TogetherThe group came back collectively to overview the exhibit and doc your remaining motion steps for moving ahead.


We put the 4 animated ingredients together that had been featured all over the display. This fundamentals turned into a essential part in my mind – coming from the UC world and the Microsoft / IT world before that, I’m pretty relaxed with servers. My guess is most UC professionals are the identical way – but in the event you birth talking statistics middle applied sciences and virtualization, some simple ideas need to be communicated.

Would like to comprehend what you consider about ‘Fundamentals of UCS”

So what do you feel?

Are you able to virtualize? I truthfully became a big convert as we worked via this demonstrate – if i used to be still installing methods this is the style i'd go. It isn’t correct for every business or every deploy, however it is a plausible choice for many folks!

Feeling Social?  

make certain and attach up with us on our fb fan page: Ton’s of ‘behind the scenes photos/movies and conversations brewing…an outstanding approach to see what a day-in-the-life of TechWiseTV is all about.

We create or take half in lots of different content in case you are interested past the leading reveal – that you would be able to sustain with us on our YouTube page or you can also subscribe to the podcast channel (opens iTunes).

Our reveal twitter account is at however you could additionally comply with Robb, Jimmy Ray, Tina Shakour, (Collabroation). 

Jimmy Ray’s weblog on community World is a should examine “Networking Geek to Geek” 

join the Collaboration conversation on the group: post questions, hear from specialists, attend virtual hobbies.


Cisco pronounces Unified Communications structures for Small and Mid-sized businesses and New sales productivity Initiatives | Real Questions and Pass4sure dumps

NEW ORLEANS, LA--(Marketwire - 03/02/eleven) - Cisco partner Summit -- Cisco (NASDAQ:CSCO - information) nowadays introduced two new purpose-constructed unified communications options for small and mid-sized corporations. These new Cisco® Unified Communications choices provide shoppers in these distinct market segments with complete, low-budget, company-category collaboration techniques to help power productivity and profitability.Cisco additionally introduced a brand new global earnings productivity initiative known as Cisco companion guide, with brokers accessible to give opt for and Registered partners instant and customized earnings aid to speed up income and make it less complicated to do enterprise with Cisco. in addition, Cisco is proposing channel companions with extra easy methods to offer finished collaboration solutions for small and mid-sized consumers by means of extending Cisco WebEx® assembly center to its partners.Announcement Highlights

  • New Unified Communications equipment for Small business -- The Cisco Unified Communications 300 collection is a complete collaboration equipment offering every little thing a corporation with two to 24 users wants for enterprise-category networking and voice communications. This effortless-to-use, affordable answer lets a small enterprise take skills of IP telephony to cut back cellphone expenses, increase worker productivity, and create a more collaborative company. It contains developed-in facts and wireless help, along with aspects corresponding to voicemail and automated attendant. Three-12 months, zero p.c financing is purchasable from Cisco Capital® within the united states, Canada and the UK for the Cisco UC300 collection through the conclusion of July, 2011.
  • New Unified Communications gadget for Mid-Sized groups -- The Cisco Unified Communications supervisor enterprise edition 3000 is a cheap unified communications platform designed for starting to be mid-sized groups, and helps a means of 300 clients throughout 10 sites. The device is brief for a trained Cisco associate to installation, and easy-to-use, with an intuitive person interface, helping these purchasers to save time and funds, and assisting our channel partners to optimize their implementation, help, and upkeep practices.

    The Cisco Unified CM enterprise version 3000 presents simple points like voice mail, conferencing, the capability to park or cling calls, auto attendant, and regular mobility facets like single number reach, extension mobility, and tele-employee aid to join enterprise calls and voice mail messages to employees anyplace they decide to work. The Cisco Unified SIP telephone 3905 is an inexpensive, IP-based mostly mobilephone that integrates with the Cisco Unified CM enterprise version 3000 to handle the need for easy voice communications for mid-sized companies. It blanketed fixed keys for redial, switch, cling and resume, speakerphone, volume toggle, and a laptop change port to in the reduction of cabling installing necessities.

  • New accomplice earnings support Initiative -- Cisco companion guide is an creative earnings coverage and assist initiative for Cisco small company and mid-market partners that gives immediate, personalized revenue guide by the use of click-to-chat or mobilephone. originally delivered through two world centers in Raleigh, North Carolina, and Lisbon, Portugal, Cisco guide personnel are waiting to assist new companions get begun with Cisco and supply counsel to partners for deal aid, classes and equipment. Over the following few months, accomplice marketing consultant will proceed to roll out in Europe, emerging Markets, Asia Pacific and Canada, and support can be accessible in English, French, German, Italian, Spanish and Korean. With this sophisticated earnings aid offering, Cisco is investing in americans and know-how to supply income insurance for more than 24,000 Cisco choose and Registered partners selling to small and mid-market valued clientele around the globe.
  • partner providing for Cisco WebEx -- Cisco is introducing a companion-led mannequin for Cisco WebEx meeting core designed particularly for partners that sell to small businesses. Cisco WebEx meeting center lets end clients share applications, presentations, files, or a pc computer in precise time and work with teams all over devoid of the time and fee of travel. by means of selling Cisco WebEx meeting middle, companions can offer more finished collaboration options whereas helping valued clientele use net conferencing to accelerate productiveness and power enterprise boom. partners can be trained more about selling WebEx meeting center at
  • assisting rates

  • Matthew Hurley, senior vice president, small company market, Bell; a Canadian carrier provider associate: "Bell is demonstrating our endured commitment to offering cost-efficient communique options to small and medium corporations. The Cisco UC320W, designed for small companies, has the entire points and performance a customer wants, it is primary to set-up and use, low in cost, and developed for transforming into organizations."
  • Reza Khorramian, vp of income, company Communications solutions; a Cisco licensed small company and advanced unified communications accomplice: "After a short introduction and working towards on the Cisco Unified Communications manager enterprise edition 3000, we installed it with a live network connection to the general public cellphone community. Setup became very easy and easy, in particular compared with different PBX methods we now have installed. there have been no considerations getting the device installed and including and changing clients and contours. installing did not require in-depth network training and we have been capable of get the system correctly making calls in lower than an hour."
  • Mark Wang, manager, simpler method; an counsel gadget architecture dressmaker and Cisco Unified Communications consumer: "Cisco Unified Communications manager business edition 3000 is a very easy-to-use IP communications gadget for managing all our essential collaboration wants. The management interface in the not obligatory chinese language language is very elementary and uncomplicated, which allowed the equipment to be installation very right now. We were happy that our business skilled minimal disruption right through the change over."
  • Barry O'Sullivan, senior vice president, Voice know-how neighborhood, Cisco: "constructing on our trade-leadership within the business collaboration market, Cisco is supplying inventive, unified communications options which are tailor-made for the interesting qualities of small and mid-market business companions and the purchasers they serve."
  • Ian Pennell, senior vice chairman, Small company know-how community and co-chair, Small business Council, Cisco: "Cisco is still one hundred percent dedicated to giving our companions and the valued clientele they serve the handy-to-use technology innovation they need to succeed. Our companions and purchasers have informed us they want simple unified communications options to aid them dwell ahead of their competitors. Cisco is able to meet that want."
  • Andrew Sage, vice chairman of worldwide Small enterprise revenue, Cisco: "Our companions are the center of our business at Cisco, and we will do some thing we will to aid them be successful. Our new Cisco partner marketing consultant initiative uses both people and know-how to help our small and mid-market enterprise partners to start or continue working with Cisco to get the instant income and classes assist they need."
  • Product Pricing and Availability

  • Cisco Unified Communications 320W is at the moment attainable. list pricing is $995.
  • Cisco Unified Communications supervisor enterprise edition 3000 is scheduled to be accessible within the 2d quarter of calendar yr 2011. listing pricing is $12,400 for one hundred users.
  • video clips

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    Technorati Tags: Cisco Small business, Cisco SMB, SMB, small organizations, mid-sized agencies, mid-market, unified communications, collaboration, companion enablement, partner solutions, Cisco small company partners, Cisco Unified Communications, Cisco Unified Communications supervisor, Cisco Unified Communications supervisor enterprise edition, IP telephony, Cisco Unified SIP mobilephone 3905, Cisco WebEx, WebEx, Cisco WebEx meeting core, Cisco partner advisor, associate programs, associate initiatives, channel partnerAbout Cisco Collaboration From award-profitable IP communications to mobility, client care, web conferencing, messaging, business social application, and interoperable telepresence experiences, Cisco brings collectively community-primarily based, built-in collaboration solutions based on open requisites. These solutions, as well as functions from Cisco and our companions, are designed to support promote business increase, innovation and productivity. they are additionally designed to help accelerate crew performance, give protection to investments, and simplify the process of finding the right individuals and informationAbout Cisco systems Cisco (NASDAQ:CSCO - news) is the worldwide leader in networking that transforms how people connect, speak and collaborate. counsel about Cisco can be found at For ongoing news, please go to and the Cisco emblem are emblems or registered logos of Cisco and/or its associates within the U.S. and different countries. a listing of Cisco's logos can be found at Third-party logos mentioned are the property of their respective homeowners. the use of the be aware companion doesn't suggest a partnership relationship between Cisco and another company.Embedded Video AvailableEmbedded Video purchasable: Video purchasable: available: available: available:

    ebook Extract: enforcing Cisco Unified Communications | Real Questions and Pass4sure dumps

    Chapter 1, determining considerations in a Multisite Deployment

    Deploying Cisco Unified Communications manager between varied sites requires an appropriate dial plan, appropriate bandwidth, a quality of carrier (QoS) implementation and a design that may continue to exist IP WAN failures.

    This chapter will explain the issues that can arise in a multisite Cisco UC supervisor deployment, and suggest specific options.

    choosing issues in a Multisite DeploymentTable of contents:1. Multisite deployment problem overview2. exceptional challenges3. Bandwidth challenges4. Availability challenges5. Dial plan challenges6. Overlapping and nonconsecutive numbers7. fastened versus variable-size numbering plans8. Variable-size numbering, E.164 addressing and DID9. Optimized name routing and PSTN backup10. NAT and protection issues

    Multisite deployment problem overview

    formerly known as Cisco name manager (CCM), Cisco Unified Communications supervisor (CUCM) multi-web page deployment challenges can include here:

  • satisfactory considerations: precise-time communications of voice and video have to be prioritized over a packet-switching network. All traffic is handled equally by way of default in routers and switches. Voice and video are lengthen-sensitive packets that deserve to accept priority to prevent prolong and jitter (variable lengthen), which would outcomes in lowered voice high-quality.
  • Bandwidth issues: Cisco Unified Communications (Cisco UC) can encompass voice and video streams, signaling traffic, administration traffic, and utility site visitors equivalent to rich media conferencing. The additional bandwidth that's required when deploying a Cisco Unified Communications answer needs to be calculated and provisioned for to ensure that statistics purposes and Cisco Unified Communications functions do not overload the accessible bandwidth. Bandwidth reservations may also be made to applications through QoS deployment.
  • Availability issues: When deploying Cisco Unified Communications manager (CUCM) with centralized name processing, IP phones register with CUCM over the IP LAN and potentially over the WAN. If gateways in far off sites are the usage of Media Gateway control Protocol (MGCP) as a signaling protocol, they also rely on the availability of CUCM acting as an MGCP name agent. it's vital to implement fallback options for IP telephones and gateways in situations through which the connection to the CUCM servers is broken as a result of IP WAN failure. Fallback options additionally apply to H.323 gateways but are already created with H.323 dial peers in a correct H.323 gateway configuration.
  • Dial plan considerations: directory numbers (DN) can overlap throughout distinctive websites. Overlapping dial plans and nonconsecutive numbers may also be solved with the aid of designing a strong multisite dial plan. evade overlapping numbers across websites every time possible for a simpler design.
  • NAT and security considerations: using deepest IP addresses within an business IP community is very commonplace. cyber web Telephony carrier providers (ITSP) require interesting public IP addresses to route IP telephone calls. The inner most IP addresses inside the commercial enterprise should be translated into public IP addresses. Public IP addresses make the IP phones visible from the internet and for this reason field to attacks.
  • exceptional challenges

    IP networks have been not at first designed to raise actual-time site visitors; as an alternative, they had been designed for resiliency and fault tolerance. every packet is processed one by one in an IP community, occasionally causing distinct packets in a communications circulate to take different paths to the vacation spot. The distinctive paths within the community may additionally have a different volume of packet loss, extend, and prolong adaptation (jitter) as a result of bandwidth, distance, and congestion changes. The vacation spot must be able to acquire packets out of order and resequence these packets. This problem is solved by the use of real-Time Transport Protocol (RTP) sequence numbers and site visitors resequencing. When feasible, it is most advantageous to no longer depend solely on these RTP mechanisms. suitable network design, using Cisco router Cisco categorical Forwarding (CEF) change cache know-how, performs per-destination load sharing by using default. Per-destination load sharing is not a perfect load-balancing paradigm, however ensures that each IP circulation (voice call) takes the same route.

    Bandwidth is shared by means of distinctive users and functions, whereas the amount of bandwidth required for a person IP stream varies enormously all through brief lapses of time. Most information functions are very bursty, whereas Cisco actual-time audio communications with RTP use the same continual-bandwidth flow. The bandwidth obtainable for any application, including CUCM and voice-bearer site visitors, is unpredictable. right through peak intervals, packets need to be buffered in queues ready to be processed on account of community congestion. Queuing is a time period that any one who has ever skilled air flight is frequent with. in the event you arrive at the airport, you must get in a line (queue), since the variety of ticket brokers (bandwidth) obtainable to check you in is below the stream of traffic arriving on the ticket counters (incoming IP traffic). If congestion happens for too lengthy, the queue (packet buffers) receives crammed up, and passengers are irritated (packets are dropped). greater queuing delays and packet drops are greater likely on enormously loaded, slow-velocity hyperlinks comparable to WAN links used between websites in a multisite environment. nice challenges are standard on these kinds of links, and also you should handle them by using imposing QoS. without the use of QoS, voice packets experience extend, jitter, and packet loss, impacting voice first-class. it is crucial to thoroughly configure Cisco QoS mechanisms conclusion to conclusion all over the community for proper audio and video performance.

    This chapter changed into excerpted with permissions from imposing Cisco Unified Communications supervisor, part 2, by using Chris Olsen, Copyright 2008. For more assistance about this publication and different titles, please discuss with Cisco Press.

    all over top durations, packets can not be sent automatically on account of interface congestion. as an alternative, the packets are temporarily saved in a queue, ready to be processed. The amount of time the packet waits in the queue, called the queuing extend, can fluctuate tremendously based on community conditions and site visitors arrival costs. If the queue is full, newly acquired packets cannot be buffered anymore and get dropped (tail drop). figure 1-1 illustrates tail drop. Packets are processed on a primary in, first out (FIFO) model in the hardware queue of all router interfaces. Voice conversations are predictable and relentless (sampling is every 20 milliseconds through default), but information purposes are bursty and greedy. Voice for this reason is discipline to degradation of first-rate as a result of prolong, jitter, and packet loss.

    figure 1-1

    click on for a larger image

    Bandwidth challenges

    every web page in a multisite deployment constantly is interconnected with the aid of an IP WAN, or every now and then through a metropolitan-area network (MAN) comparable to Metro Ethernet. Bandwidth on WAN links is proscribed and relatively high priced. The goal is to make use of the purchasable bandwidth as efficaciously as possible. unnecessary traffic should still be removed from the IP WAN links through content material filtering, firewalls, and entry handle lists (ACL). IP WAN acceleration methods for bandwidth optimization should be considered as smartly. Any duration of congestion may influence in carrier degradation until QoS is deployed all the way through the community.

    Voice streams are steady and predictable for Cisco audio packets. usually, the G.729 codec is used across the WAN to finest use bandwidth. As a comparison, the G.711 audio codec requires sixty four kbps, whereas packetizing the G.711 voice sample in an IP/UDP/RTP header every 20 ms requires sixteen kbps plus the Layer 2 header overhead.

    Voice is sampled every 20 ms, leading to 50 packets per 2d (pps). The IP header is 20 bytes, whereas the UDP header is 8 bytes, and the RTP header is 12 bytes. The 40 bytes of header suggestions must be converted to bits to work out the packet cost of the overhead. as a result of a byte has eight bits, 40 bytes * 8 bits in a byte = 320 bits. The 320 bits are despatched 50 instances per 2nd in line with the 20-ms cost (1 millisecond is 1/a thousand of a 2nd, and 20/1000 = .02). So:

    .02 * 50 = 1 second320 bits * 50 = 16,000 bits/sec, or sixteen kbps

    Voice packets are benign compared to the bandwidth consumed through facts functions. data functions can fill the whole maximum transmission unit (MTU) of an Ethernet frame (1518 bytes or 9216 bytes if jumbo Ethernet frames were enabled). In assessment to facts application packets, voice packets are very small (60 bytes for G.729 and 200 bytes for G.711 with the default 20-ms sampling expense).

    In figure 1-2, a conference bridge has been deployed on the main web site. No convention bridge exists on the remote site. If three IP phones at a far flung web site be a part of a conference, their RTP streams are sent across the WAN to the conference bridge. The conference bridge, no matter if the use of application or hardware resources, mixes the acquired audio streams after which sends again three exciting unicast audio streams to the IP phones over the IP WAN. The conference bridge eliminates the receiver's voice from his or her entertaining RTP circulation in order that the person does not event echo on account of the delay of traversing the WAN link and mixing RTP audio streams within the convention bridge.

    figure 1-2

    click on for a larger picture

    Centralized conference substances cause bandwidth, lengthen, and ability challenges within the voice community. each and every G.711 RTP circulation requires 80 kbps (plus the Layer 2 overhead), resulting in 240 kbps of IP WAN bandwidth consumption by means of this voice conference. If the convention bridge were not determined on the other aspect of the IP WAN, this site visitors would now not need to traverse the WAN hyperlink, leading to less extend and bandwidth consumption. If the remote web site had a CUCM area configuration that resulted in calls with the G.729 codec returned to the main web page, the utility conferencing materials of CUCM would now not be capable of mix the audio conversations. Hardware conferencing or hardware transcoder media supplies in a voice gateway are required to accommodate G.729 audio conferencing. local hardware conference components would eliminate this want. All centrally located media supplies (song On cling [MOH], annunciator, convention bridges, videoconferencing, and media termination elements) endure equivalent bandwidth, lengthen, and aid exhaustion challenges.

    Availability challenges

    When deploying CUCM in multisite environments, centralized CUCM-primarily based features are accessed over the IP WAN. Affected capabilities encompass here:

  • Signaling in CUCM multisite deployments with centralized call processing: far off Cisco IP telephones register with a centralized CUCM server. faraway MGCP gateways are controlled through a centralized CUCM server that acts as an MGCP call agent.
  • Signaling in CUCM multisite deployments with distributed name processing: In such environments, websites are connected by way of H.323 (non-gatekeeper-managed, gatekeeper-managed, or H.225) or Session Initiation Protocol (SIP) trunks.
  • Media change: RTP streams between endpoints determined at different sites.
  • different features: These encompass Cisco IP mobilephone Extensible Markup Language (XML) services and entry to applications such as attendant console, CUCM Assistant, and others.
  • figure 1-3 shows a Unified Communications network in which the leading site is connected to a far off website through a centralized call-processing environment. The leading web page is additionally linked to a far flung cluster through an intercluster trunk (ICT) representing a allotted name processing ambiance. The combination of each centralized and distributed name processing represents a hybrid name-processing model during which small sites use the CUCM materials of the leading web page, however big far flung workplaces have their personal CUCM cluster. On the backside left of determine 1-three is a SIP trunk, typically over a Metro Ethernet connection to a web Telephony service company (ITSP). The improvement of the SIP trunk is that the ITSP provides the gateways to the PSTN in its place of your providing gateways at the leading website.

    determine 1-three

    click on for a bigger graphic

    An IP WAN outage in figure 1-3 will trigger an outage of call-processing services for the remote web page connected in a centralized style. The far flung cluster will not suffer a name-processing outage, however the remote cluster should not capable of dial the leading site over the IP WAN during the outage. Mission-important voice purposes (voice mail, interactive voice response [IVR], and so forth) observed at the main website will be unavailable to any of the other websites during the WAN outage.

    If the ITSP is using the same hyperlinks that permit IP WAN connectivity, all calls to and from the public switched cellphone network (PSTN) will even be unavailable.

    A deployment like the one shown in figure 1-three is regarded badly designed on account of the inability of IP WAN and PSTN backup.

    Dial plan challenges

    In a multisite deployment, with a single or multiple CUCM clusters, dial plan design requires the glory of a few considerations that don't exist in single-website deployments:

  • Overlapping numbers: clients observed at different websites can have the identical listing numbers assigned. as a result of listing numbers constantly are unique only within a site, a multisite deployment requires an answer for overlapping numbers.
  • Nonconsecutive numbers: Contiguous tiers of numbers are important to summarize name-routing information, analogous to contiguous IP tackle degrees for route summarization. Such blocks will also be represented by way of one or a number of entries in a call-routing table, akin to route patterns, dial peer destination patterns, and voice translation suggestions, which hold the routing desk brief and easy. If each endpoint requires its personal entry within the name-routing desk, the desk receives too big, loads of memory is required, and lookups take greater time. hence, nonconsecutive numbers at any site aren't gold standard for efficient call routing.
  • Variable-size numbering: Some international locations, such because the U.S. and Canada, have fastened-size numbering plans for PSTN numbers. Others, akin to Mexico and England, have variable-size numbering plans. a problem with variable-length numbers is that the complete length of the number dialed can be decided best through the CUCM route plan by using anticipating the interdigit timeout. watching for the interdigit timeout, wide-spread because the T.302 timer, provides to the put up-dial delay, which may also annoy users.
  • Direct inward dialing (DID) tiers and E.164 addressing: When on the grounds that integration with the PSTN, internally used directory numbers ought to be concerning external PSTN numbers (E.164 addressing). counting on the numbering plan (fastened or variable) and capabilities offered by the PSTN, right here options are normal:
  • every inside directory quantity relates to a set-size PSTN quantity: in this case, each and every interior directory quantity has its personal committed PSTN number. The listing number can, however does not have to, match the least-giant digits of the PSTN number. In countries with a fixed numbering plan, such as the North American Numbering Plan (NANP), this usually skill that the four-digit office codes are used as inner directory numbers. If these are not entertaining, digits of office codes or administratively assigned website codes can be brought, leading to five or more digits getting used for inner listing numbers.

    yet another solution is to now not reuse any digits of the PSTN number but to without problems map every internally used directory quantity to any PSTN number assigned to the enterprise. during this case, the inside and external numbers don't have anything else in general. If the internally used directory quantity fits the least-big digits of its corresponding PSTN number, enormous digits can be set at the gateway or trunk. also, generic external cell quantity masks, transformation masks, or prefixes can be configured. here's proper as a result of all internal directory numbers are modified to entirely certified PSTN numbers in the equal manner. an additional illustration is if the inside directory quantity is composed of parts of the PSTN quantity and administratively assigned digits such as web page codes plus PSTN station codes, or different ranges, corresponding to PSTN station codes 4100 to 4180 that map to listing numbers 1100 to 1180, or absolutely impartial mappings of internal directory numbers to PSTN numbers. in that case, one or extra translation rules have to be used for incoming calls, and one or extra calling birthday celebration transformation suggestions, transformation masks, exterior cell quantity masks, or prefixes need to be configured.

  • No DID assist in fixed-length numbering plans: To avoid the requirement of one PSTN quantity per inner listing quantity when the use of a set-length numbering plan, it's general to disallow DID to an extension. as an alternative, the PSTN trunk has a single number, and all PSTN calls routed to that quantity are despatched to an attendant, auto-attendant, receptionist, or secretary. From there, the calls are transferred to the acceptable inner extension.
  • internal listing numbers are a part of a variable-length number: In international locations with variable-length numbering plans, a customarily shorter "subscriber" quantity is assigned to the PSTN trunk, however the PSTN routes all calls beginning with this number to the trunk. The caller can add digits to determine the extension. There is no mounted variety of extra digits or complete digits. besides the fact that children, there's a maximum, usually 32 digits, which gives the liberty to select the size of directory numbers. This highest length can also be much less. as an example, in E.164 the highest quantity is 15 digits, now not together with the country code. A caller readily adds the appropriate extension to the business's (brief) PSTN quantity when putting a call to a selected consumer. If most effective the short PSTN quantity without an extension is dialed, the name is routed to an attendant within the enterprise. Residential PSTN numbers are continually longer and don't enable further digits to be brought; the feature just described is obtainable only on trunks.
  • class of quantity (TON) in ISDN: The calling number (the automated quantity Identification [ANI]) of calls being got from the PSTN can also be represented in other ways:

    - As a seven-digit subscriber number- As a ten-digit quantity, together with the enviornment code- In foreign layout with the country code in entrance of the enviornment code

    To standardize the ANI for all calls, the layout this is used must be favourite, and the number must be changed for this reason.

  • Optimized call routing: Having an IP WAN between websites with PSTN access at all sites allows PSTN toll pass by using sending calls between sites over the IP WAN as a substitute of using the PSTN. In such scenarios, the PSTN should still be used as a backup direction best in case of WAN failure. an extra answer, which extends the conception of toll skip and may probably cut back toll prices, is to additionally use the IP WAN for PSTN calls. With tail-conclusion hop-off (TEHO), the IP WAN is used as much as possible, and the gateway it's closest to the dialed PSTN vacation spot is used for the PSTN breakout.
  • Overlapping and nonconsecutive numbers

    In figure 1-four, Cisco IP phones at the leading site use directory numbers 1001 to 1099, 2000 to 2157, and 2365 to 2999. on the far off website, 1001 to 1099 and 2158 to 2364 are used. These listing numbers have two considerations. First, 1001 to 1099 overlap; these listing numbers exist at both sites, in order that they don't seem to be enjoyable all over the finished deployment. This reasons an issue: If a user in the far off web page dialed handiest the 4 digits 1001, which cellphone would ring? This concern of overlapping dial plans needs to be addressed by digit manipulation. furthermore, the nonconsecutive use of the latitude 2000 to 2999 (with some reproduction numbers on the two websites) would require a significant variety of extra entries in call-routing tables since the stages can hardly ever be summarized by one (or a couple of) entries.

    figure 1-four

    click on for a bigger picture

    fastened versus variable-length numbering plans

    a hard and fast numbering plan points fastened-size enviornment codes and local numbers. An open numbering plan elements variance in size of enviornment code or local quantity, or both, within the country.

    desk 1-1 contrasts the NANP and a variable-length numbering plan -- Germany's numbering plan during this illustration.

    table 1-1

    component Description fixed Numbering Plan (NANP) Variable-length Numbering Plan (Germany) nation code A code of one to 3 digits is used to reach the certain phone gadget for each and every nation or particular carrier. acquire the E.164 common from to see all international country codes. 1 forty nine area code Used inside many nations to route calls to a selected metropolis, vicinity, or special carrier. depending on the nation or region, it may possibly even be known as a numbering plan area, subscriber trunk dialing code, national destination code, or routing code. Three digits Three to five digits Subscriber quantity Represents the selected mobile number to be dialed, but it surely doesn't encompass the nation code, area code (if applicable), overseas prefix, or trunk prefix. Three-digit alternate code plus a four-digit station code Three or extra digits Trunk prefix The preliminary digits to be dialed in a home call, earlier than the enviornment code and the subscriber number. 1 0 access code a host this is traditionally dialed first "to get out to the PSTN," used in PBXs and VoIP programs. 90 international prefix The code dialed before a global quantity (nation code, area code if any, and then subscriber number). 011 00 or + (+ is used by mobile phones)


  • in the U.S.: 9-1-408-555-1234 or 1-555-1234 (inside the equal area code)
  • U.S. to Germany: 9-011-forty nine-404-132670
  • inside Germany: 0-0-404-132670 or 0-132670 (within the same enviornment code)
  • Germany to the U.S.: 0-00-1-408-555-1234 (be aware: the 1 in 00-1-408 is the U.S. nation code, not the trunk prefix.)
  • The NANP PSTN quantity is 408-555-1234, DID isn't used, and all calls placed to the leading website are handled by an attendant. there's a far off website in Germany with the E.164 PSTN quantity +forty nine 404 13267. four-digit extensions are used at the German area, and DID is allowed as a result of digits can also be brought to the PSTN number. When calling the German office attendant (not realizing a specific extension), U.S. users would dial 9-011-forty nine-404-13267. word how the + is replaced by the international prefix 011 and the entry code 9. If the cell with extension 1001 should still be called directly, 9-011-49-404-13267-1001 needs to be dialed.

    Variable-size numbering, E.164 addressing and DID

    figure 1-5 illustrates an illustration during which the leading site with CUCM resides in the U.S. and a far off web site without CUCM resides in Germany. The NANP PSTN number in the U.S. is 408-555-1234. be aware that DID isn't used, because all calls placed to the leading web site are handled by means of an attendant. A far off site in Germany has PSTN number +49 404 13267. 4-digit extensions are used at the German place, and DID is allowed because digits can also be brought to the PSTN quantity. When calling the German office attendant (now not understanding a particular extension), U.S. clients would dial 9-011-forty nine-404-13267. If the telephone with extension 1001 should be called without delay, 9-011-49-404-13267-1001 has to be dialed.

    determine 1-5

    click for a larger photo

    The logic of routing calls by way of CUCM over the WAN or during the PSTN is as it should be transparent to the mobilephone person.

    Optimized name routing and PSTN backup

    There are two methods to keep charges for PSTN calls in a multisite deployment:

  • complete skip: Calls between websites within a firm that use the IP WAN in its place of the PSTN. The PSTN is used for intersite calls most effective if calls over the IP WAN aren't viable—both because of a WAN failure or because the call isn't admitted through call Admission handle (CAC).
  • Tail-end hop-off (TEHO): Extends the thought of toll pass by means of additionally the use of the IP WAN for calls to the faraway locations in the PSTN. With TEHO, the IP WAN is used as tons as viable, and PSTN breakout happens on the gateway that's determined closest to the dialed PSTN vacation spot. native PSTN breakout is used as a backup in case of IP WAN or CAC.
  • within the example shown in figure 1-6, a name from Chicago to San Jose could be routed as follows:

  • The Chicago CUCM categorical consumer dials 9-1-408-555-6666, a PSTN cell found in San Jose.
  • The call is routed from Chicago CUCM express Router to the San Jose CUCM cluster over the IP WAN with either SIP or H.323.
  • The San Jose CUCM routes the call to the San Jose gateway, which breaks out to the PSTN with what now turns into a local not pricey call to the San Jose PSTN.
  • The San Jose PSTN valuable workplace routes the call, and the cell rings.
  • determine 1-6

    click on for a bigger graphic

    If the WAN have been unavailable for any motive before the call, the Chicago Gateway would must be accurately configured to route the name with the applicable digit manipulation in the course of the PSTN at a doubtlessly larger toll cost to the San Jose PSTN cellphone.

    NAT and protection considerations

    In single-web site deployments, CUCM servers and IP telephones usually use deepest IP addresses as a result of there is no need to communicate with the backyard IP world. NAT is not configured for the mobilephone subnets, and attacks from the outdoor are not possible. In multisite deployments, although, IP protection (IPsec) digital inner most network (VPN) tunnels may also be used between websites. The VPN tunnels allow best intersite verbal exchange; access to the protected interior networks is not viable from the backyard—simplest from the different web page in the course of the tunnel. for this reason, attacks from the backyard are blocked at the gateway. To configure IPsec VPNs, the VPN tunnel must be configured to terminate on both gateways in the distinctive sites. now and again here is not possible; as an instance, the two sites may well be beneath diverse administration, or possibly security policies do not permit the configuration of IPsec VPNs.

    In such a case, or when connecting to a public provider such as an ITSP, NAT needs to be configured for CUCM servers and IP telephones. Cisco calls this Hosted NAT Traversal for Session Border Controllers.

    In determine 1-7, company A and enterprise B each use IP community internally. To talk over the internet, the private addresses are translated into public IP addresses. company A makes use of public IP network A, and enterprise B makes use of public IP community B. All CUCM servers and IP phones can be reached from the web and speak with each and every different.

    As quickly as CUCM servers and IP phones will also be reached with public IP addresses, they are discipline to assaults from the outside world, introducing advantage safety considerations.

    figure 1-7

    click for a larger photograph

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    Cisco Announces Changes to CCNP Voice | real questions and Pass4sure dumps

    In addition to the CCNP Security and CCNA Voice announcements Cisco made at Interop New York today, Cisco also announced changes to the CCNP Voice certification. Cisco appears to be changing the names of all the professional-level certs to CCNP "something" (CCNP Voice is the new official name of this cert). The biggest changes? Updates to Collaboration software V8.0, Unity Connection and Presence enter this cert in the new CAPPS exam, and the QoS exam leaves the cert.  

    This post will focus on the CCNP Voice cert, with links for other posts listed at the bottom of this posting. In this post, I'll give an overview of the changes, list some links, and open it up for some gut reaction. I'll dig into the specifics in the individual exams over the next few weeks.

    Quick Links:

    Main CCNP Voice page at

    Main CCNP Voice page at the Cisco Learning Network

    CCNP Voice Announcement at the Cisco Learning Network

    Exam Changes:

    CCNP Voice retains the 5-exam model. Updated versions of CVOICE, CIPT1, CIPT2, and TUC (renamed TVOICE) all remain, but with some topics shifting. The QoS exam goes away from CCNP Voice, but some QoS content moves over to the new CVOICE. (The new CVOICE tacks "and QoS" to the end of the old official name.) Cisco replaces the QoS exam slot in CCNP Voice with the new Integrating Cisco Unified Communications Applications (CAPPS) exam.

    I had the chance to chat with Fred Weiller, Director of Marketing for Learning@Cisco, and Tejas Vashi, Senior Manager Responsible for Product Management for Learning@Cisco, about the upcoming changes. Fred told me that the biggest change across the exams (and related courses) is the additions/changes related to V8.0 of all the Cisco Voice products (Cisco Unified Communications and Collaboration 8.0). So while the topics may have gotten moved around a bit from exam to exam (comparing the old and new exams, respectively), the biggest changes appear to be the updates for the product versions, and the addition of the new CAPPS exam. It also looks like some of the CIPT1 admin tasks have moved over to the new CCNA to the new ICOMMM course, which is a new exam for CCNA Voice. 

    To help us sift through the specifics about changes to the exams, I've asked my good friend and occasional guest blogger in this space, Dave Schulz, to do a guest blog post here.(Dave teaches Voice classes for Skyline ATS, and wrote the new Cisco Press CIPT2 Quick Reference product.) Before the week's up, I'll post his thoughts examining the details of the changes in CIPT1/CIPT2. He'll probably also give us some additional detail of the other new CCNP Voice exams in another post as well.

    The new exam for CCNP Voice, CAPPS, focuses on voice applications, specifically Cisco Unified Messaging (Unity) and Cisco Unified Presence. Cisco already had courses on these topics, but not in the former CCVP track.

    Finally, Cisco did not migrate the QoS exam from the old CCVP to the new CCNP Voice. Cisco removed QoS as a major topic from CCNP (Route/Switch) in their January 2010 update. (Click here to see earlier blog posts on this year's CCNP changes.) Cisco shrinks the QoS content in CCVP/CCNP Voice, but the new CVOICE 8.0 exam does cover several QoS topics: DiffServ, classification and marking, link efficiency, and LLQ. The QoS exam stick around for the CCIP track. Wow!

    Transition Plan:

    As usual, Cisco will have a transition period in which the old exams still exist, and the new exams also exist. The posted last date to test with the old exams in Feb 28, 2011, but re-check the web site if you're basing your study plan on this date! (Look to the main page for the new CCNP Voice and search from there.) You can always pass all the old exams before they go away, or wait and pass all the new exams. The interesting cases happen when you want to use some old and some new exams.

    Cisco gave us a nice easy transition plan to the new CCNP Voice. Essentially, you pass either the old or the new exam in the four obvious cases, and they even let the old QoS count (if passed on time) instead of the new CAPPS exam. 

    Cisco Press Publication Plan

    The good news is that, as before, Cisco Press plans to publish new editions of their existing Self Study Guides (SSG) and Quick Reference products for CVOICE, CIPT1, and CIPT2, along with Quick Reference products for TVOICE and CAPPS. The bad news is that it appears that neither TVOICE nor CAPPS will have a Self-Study Guide (SSG) or Official Certification Guide (OCG) for CAPPS.

    It may be useful to consider some background on the style of products. The Quick Refs, a downloaded PDF, summarize reference info for each exam, about 100 pages (+-50%). The Self Study Guides (SSG) focus on foundational learning and are typically based on the material, examples, and diagrams from the Cisco authorized curriculum by the same name. Finally, Cisco Press makes an electronic version of these SSGs available early, for those who don't want to wait for the printed book, in a format called Rough Cuts. It's a download of the book, but before some of the final editing is done. So, it's rough... but you get it early.

    So, here are the currently planned date ranges (varies slightly from product to product):

    SSG Rough Cut dates (planned): December 2010

    SSG Print dates (planned): April/May 2011

    Quick Ref dates (planned): Jan 2011

    Click here to see a list of the Self Study Guide and Quick Reference products. Note that the links may not be available immediately on announcement day, so I've linked to a page on my web site. I'll update those links in one place as they become available. Finally, on the full disclosure front: while I haven't written any of these CCNP Voice books, I do have an indirect interest in seeing Cisco Press succeed.

    Quick Opinions

    What do you think? Hoorah, ho hum, oh no?

    I was really hoping Cisco would shrink this cert from 5 exams to 4 - I still think CCNP Voice is too big.

    Sorry, I'm sad about the disappearance of the QoS exam. It appears to be important, just not an entire exam worth of important. What about you folks?

    Cisco's October Certification Announcements:

    Cisco Announces Changes to CCNP Voice

    Cisco Adds Another Exam to CCNA Voice

    Cisco Announces Changes to CCNP Security

    Join the Network World communities on Facebook and LinkedIn to comment on topics that are top of mind.

    A (relatively) brief guide to Cisco IT certifications | real questions and Pass4sure dumps

    Cisco IT certifications are often found sprinkling the lists of the highest paying certifications in the industry. If you're looking at getting certified, take a look at this guide to Cisco IT certifications.

    Are you thinking about expanding your resume with a new certification? Cisco IT certifications are often found sprinkling the lists of the highest paying certifications in the industry. Cisco is the long-standing industry leader in designing and manufacturing network equipment.

    Whether you're thinking of specializing in working with Cisco products or just broadening your overall skill-set, the ubiquity of Cisco's products and services makes the company's IT certifications an important part of developing your basic skills as an IT professional.

    Cisco offers exams at four primary levels of IT certification - Entry, Associate, Professional, and Expert. There are additional tests available at Technician, Specialist and Architect levels. In this post, we're going to focus on certifications at the Entry, Associate, and Professional levels, because if you're an expert already you probably don't need a guide!

    At each level, there are nine different paths for various specialties within IT, including:

  • Routing and switching
  • Design
  • Network security
  • Wireless
  • Voice
  • Data center
  • Storage networking
  • Service provider
  • Service provider operations
  • Each proficiency level has tests to certify the test-taker's abilities in the nine subject areas listed above. Here's a chart showing which tests cover which subjects:

    Entry Associate Professional Routing & Switching CCENT CCNA CCNP Design CCENT CCDA CCDP Network Security CCENT CCNA Security CCNP Security Wireless CCENT CCNA Wireless CCNP Wireless Voice CCENT CCNA Voice CCNP Voice Data Center CCENT CCNA Data Center CCNP Data Center Storage Networking CCENT Service Provider CCNA Service Provider CCNP Service Provider Service Provider Options CCENT CCNA Service Provider Operations CCNP Service Provider Operations

    (Note that blank spaces indicate the subject is not covered in that certification level)

    (A modified version of the chart is available on Cisco's site.)

    Let's look at each of those exams in more depth.

    CCENT (Entry certification, all paths)

    What does it stand for? Cisco Certified Entry Networking Technician

    What does it prove? This certification proves the tester's understanding of basic networking technologies in relation to the 9 paths (security, wireless technology, routing and switching, etc.). It forms the foundation for future certifications, and provides a breadth of knowledge for you to then select a specialty.

    What test do I have to take? 640-822 (ICND1) - Study material available online.

    Are there prerequisites? This test does not have any prerequisites.

    Average Salary for Certification holder: $74,764 (average salaries based on PayScale numbers)

    CCNA (Associate certification, Routing and Switching path)

    What does it stand for? Cisco Certified Network Associate

    What does it prove? This certification proves the tester's ability to install, monitor and troubleshoot network infrastructure. Recipients of this certification are trusted to be able to perform the day-to-day tasks of a network administrator, with a focus on routing and switching.

    What test do I have to take? You may choose to take the 640-802 CCNA exam or both the 640-822 ICND1 and 640-816 ICND2 exams. Online study materials are available for the 640-802 CCNA exam, 640-822 ICND1 exam, and 640-816 ICND2 exam.

    Are there prerequisites? This test does not have any prerequisites.

    Average Salary for Certification holder: $82,923

    CCDA (Associate certification, Design path)

    What does it stand for?Cisco Certified Design Associate

    What does it prove? This certification proves the tester's ability to design robust routed and switched network infrastructure for companies of any size. If taken by an individual with existing network engineering abilities, this certification proves that this engineering expertise is backed up with a networking design background. This helps in the daily configuration and troubleshooting tasks of network engineers.

    What test do I have to take? 640-863 DESIGN - Study material available online.

    Are there prerequisites? This test does not have any prerequisites, but an understanding of the material covered in the CCNA and CCNP tests is recommended.

    Average Salary for Certification holder: $101,915

    CCNA Security (Associate certificate, Security path)

    What does it stand for? Cisco Certified Network Associate Security

    What does it prove? This certification proves the tester's competency in installing and monitoring Cisco security technologies. The tester has received an introduction into security technologies, and is able to perform the daily tasks of a network security specialist and administrator.

    What test do I have to take? 640-554 IINS - Online training available. (Note: This test replaced the 640-533 IINS exam, which was last offered on final test date on September 30, 2012.)

    Are there prerequisites? Testers are required to have either an up-to-date CCNA or any Cisco CCIE Certification before taking the CCNA security certification exam.

    Average Salary for Certification holder: $92,430

    CCNA Wireless (Associate certificate, Wireless path)

    What does it stand for? Cisco Certified Network Associate Wireless

    What does it prove? This certification proves the tester's ability to use Cisco equipment to implement, configure and support wireless LANs. The tester is able to perform the daily tasks of a wireless network administrator.

    What test do I have to take? IUWNE 640-722 (Implementing Cisco Unified Wireless Networking Essentials) - Training available online.

    Are there prerequisites? Testers are required to have either an up-to-date CCNA or any Cisco CCIE Certification before taking the CCNA security certification exam.

    Average Salary for Certification holder: $95,123

    CCNA Voice (Associate certificate, Voice path)

    What does it stand for? Cisco Certified Network Associate Voice

    What does it prove? The tester is prepared for a career in voice networking, and equipped with the necessary skills including managing and supporting voice networks and applications. The tester has a basic understanding of VoIP technologies such as handsets, call control, messaging, etc.

    What test do I have to take? 640-461 ICOMM (Introducing Cisco Voice and Unified Communications Administration) v8.0 - Online training available.

    Are there prerequisites? Testers are required to have either an up-to-date CCNA or any Cisco CCIE Certification before taking the CCNA security certification exam.

    Average Salary for Certification holder: $97,617

    CCNP Voice (Associate certificate, Voice path)

    What does it stand for? Cisco Certified Network Associate Voice

    What does it prove? The tester is prepared for a career in voice networking, and equipped with the necessary skills including implementing, operating, and troubleshooting a converged IP network. The tester has a thorough understanding of quality of service (QoS), gateways, gatekeepers, IP phones, voice applications and utilities on Cisco routers and Cisco Catalyst switches.

    What test do I have to take? 642-437 CVOICE v8.0 (Implementing Cisco Voice Communications and QoS) and 642-447 CIPT1 v8.0 (Implementing Cisco Unified Communications Manager, Part 1) and 642-457 CIPT2 v8.0 (Implementing Cisco Unified Communications Manager, Part 2) and 642-427 TVOICE v8.0 (Troubleshooting Cisco Unified Communications) and 642-467 CAPPS v8.0 (Integrating Cisco Unified Communications Applications)

    Are there prerequisites? Testers are required to have either an up to date CCNA Voice certification or any CCIE Certification.

    Average Salary for Certification holder: $111,073 (Source)

    CCNA Data Center (Associate certificate, Data Center path)

    What does it stand for? Cisco Certified Network Associate Data Center

    What does it prove? The CCNA Data Center certification is focused on training data center professional for work in their field. The tester is prepared to work as a data center professional designing, installing and maintaining data centers.

    What test do I have to take? 640-911 DCICN (Introducing Cisco Data Center Networking) and 640-916 DCICT (Introducing Cisco Data Center Technologies)

    Are there prerequisites? This test does not have any prerequisites.

    Average Salary for Certification holder: Not available.

    CCNP Data Center (Professional certificate, Data Center path)

    What does it stand for? Cisco Certified Network Professional Data Center

    What does it prove? The CCNP Data Center Certification proves the experienced data center professional's ability to design, implement, and troubleshoot data centers. Like the CCNA Data Center certification, the CCNP Data Center certification is designed to provide on-the-job skill building for those studying for it.

    What test do I have to take? Many of the required tests are being retired in early 2013. We've chosen not to list these here. 642-999 DCUCI v5.0 and 642-997 DCUFI v5.0 and 642-998 DCUCD v5.0 and 642-996 DCUFD v5.0 or 642-035 DCUCT v5.0 and 642-980 DCUFT v5.0. For a full list of exams, including the ones that will be retired in early 2013, click here.

    Are there prerequisites? Testers are required to have either an up-to-date CCNA Data Center certification, or any Cisco CCIE Certification before taking the CCNP Data Center certification.

    Average Salary for Certification holder: Not available.

    CCNA Service Provider (Associate certificate, CCNA Service Provider)

    What does it stand for? Cisco Certified Network Associate Provider

    What does it prove? The tester is prepared to work as a network engineer on next generation service provider networks. The tester has acquired the necessary skills to configure, optimize and problem solve service provider network environments.

    What test do I have to take? 640-875 SPNGN1 and 640-878 SPNGN2 (Building Cisco Service Provider Next-Generation Networks). Click the test name for available online training.

    Are there prerequisites? This test does not have any prerequisites.

    CCNA Service Provider Operations (Associate certificate, CCNA Service Provider Operations)

    What does it stand for? Cisco Certified Network Associate Service Provider Operations

    What does it prove? The tester is prepared to work as a Tier I support engineer, understanding how to troubleshoot, configure, change and manage the performance of the environment within an IP NGN core network infrastructure.

    What test do I have to take? 640-760 SSPO (Supporting Cisco Service Provider IP NGN Operations). Online training resources available.

    Are there prerequisites? Testers are required to have either an up-to-date CCENT, CCNA, or any Cisco CCIE Certification before taking the CCNA Service Provider Operations exam.

    CCNP (Professional certificate, Routing and Switching path)

    What does it stand for? Cisco Certified Network Professional

    What does it prove? The tester is prepared to work with specialists on advanced technologies, such as security, wireless, voice, etc. The tester is equipped with the necessary implementing, verifying and troubleshooting skills to work with local and wide-area networks as a technician, support engineer, system engineer or network engineer.

    What test do I have to take? 642-902 ROUTE (Implementing Cisco IP Routing), 642-813 SWITCH (Implementing Cisco IP Switched Networks, 642-832 TSHOOT Troubleshooting and Maintaining Cisco IP Networks - Online training available. Click test names to see online training options.

    Are there prerequisites? Testers are required to have either an up-to-date CCNA or any Cisco CCIE Certification before taking the CCNA security certification exam.

    Average Salary for Certification holder: $76,000

    CCNA Service Provider Operations (Associate certificate, Service Provider Operations path)

    What does it stand for? Cisco Certified Network Associate Service Provider Operations

    What does it prove? The CCNA Service Provider certification proves the certificate-holder's basic knowledge of incident, fault, configuration, change and performance management procedures, as well as NMS tools and protocols.

    What test do I have to take? 640-760 SSPO

    Are there prerequisites? Testers are required to have one of the following: any valid cisco CCENT, CCNA or CCIE before taking the CCNA Service Provider Operations exam.

    Average Salary for Certification holder: Not available.

    CCDP (Professional certificate, Design path)

    What does it stand for? Cisco Certified Design Professional

    What does it prove? The tester is able to understand and implement intelligent network design architectures for enterprises. The tester will be able to articulate their plan and implement it to create secure, multi-layered network systems. Tester's abilities extend to virtual private networking and wireless domains, as well as building scalable internetworks, multilayer switched networks and designing network service architectures.

    What test do I have to take? 642-902 ROUTE (Implementing Cisco IP Routing), 642-813 SWITCH (Implementing Cisco IP Switched Networks), ARCH (Designing Cisco Network Service Architectures). - Online training available. Click test names to see online training options.

    Are there prerequisites? Testers are required to have either an up-to-date CCDA and CCNA certifications or any Cisco CCIE Certification before taking the CCDP security certification exam.

    Average Salary for Certification holder: $116,863

    CCNP Security (Professional certificate, Security path)

    What does it stand for? Cisco Certified Network Professional Security

    What does it prove? The tester will have the necessary skills to perform the on-the-job tasks required from a network security engineer. CCNP Security professionals are able to test, deploy, configure, maintain, and troubleshoot Cisco compliances and iOS features.

    What test do I have to take? 642-637 SECURE v1.0 (Secure v1.0 Securing Networks with Cisco Routers and Switches), 642-618 FIREWALL v2.0 (Deploying Cisco ASA Firewall Solutions), 642-648 VPN v2.0 (Deploying Cisco ASA VPN Solutions), 642-627 IPS v7.0 (Implementing Cisco Intrusion Prevention System v7.0). - Online training available. Click test names to see online training options.

    Are there prerequisites? Testers are required to have either an up-to-date CCNA Security certification, or CCSP certification, or CCNA certification and SND exam pass.

    Average Salary for Certification holder: $118,521

    CCNP Wireless (Professional certificate, Wireless path)

    What does it stand for? Cisco Certified Network Professional Wireless

    What does it prove? The tester will understand how to conduct a wireless site survey, integrate voice over wireless LAN services and mobility services into a wireless LAN, as well as ensure the proper implementation of a security standard into the wireless environment. Testers will be knowledgeable about wireless networking on an advanced level.

    What test do I have to take? 642-732 CUWSS v2.0 (Conducting Cisco Unified Wireless Site Survey) and 642-742 IUWVN v2.0 (Implementing Cisco Unified Wireless Voice Networks) and 642-747 IUWMS v2.0 (Implementing Cisco Unified Wireless Mobility Services) and 642-737 IAUWS v2.0 (Implementing Advanced Cisco Unified Wireless Security)

    Are there prerequisites? Testers are required to have either an up-to-date CCNA certifications or any Cisco CCIE Certification before taking the CCNP wireless exam.

    Average Salary for Certification holder: $95,123

    CCNP Service Provider (Professional certificate, Service Provider path)

    What does it stand for? Cisco Certified Network Professional Service Provider

    What does it prove? The tester will gain the on-the-job skills required to implement, verify, troubleshoot, and optimize the service provider network environment. This certification enables the tester to deliver scalable, optimized network architectures for enterprises.

    What tests do I have to take? 642-883 (Deploying Cisco Service Provider Network Routing or SPROUTE) and 642-885 (Deploying Cisco Service Provider Advanced Routing or SPADVROUTE) and 642-887 (Implementing Cisco Service Provider Next-Generation Core Network Services or SPCORE) and 642-889 (Implementing Cisco Service Provider Next-Generation Edge Network Services or SPEDGE)

    Are there prerequisites? Testers are required to have either an up-to-date CCNA Service Provider certification, or CCNA Routing & Switching and passed a minimum of 1 CCIP exam), or CCIP, or any Cisco CCIE Certification before taking the CCNP wireless exam.

    Average Salary for Certification holder: Certified CCNP network engineers earn $56,422 to $80,408; information technology managers earn $65,274 to $96,075.14.

    CCNP Service Provider Operations (Professional certificate, Service Provider Operations path)

    What does it stand for? Cisco Certified Network Professional Service Provider Operations

    What does it prove? The tester will be able to understand how to identify and isolate network performance problems and identify solutions by implementing effective network management processes and policies. CCNP Service Provider Operations individuals will be able to work at the level of a Tier II or Tier III support engineer on IP NGN core network infrastructures.

    What tests do I have to take? 642-770 OFCN Prep (Operational Foundations for Cisco Service Provider Core Networks), 642-775 MSPRP Prep (Maintaining Cisco Service Provider Routing Protocols), 642-780 MSPVM Prep (Maintaining Cisco Service Provider VPNs and MPLS Networks), 642-785 MSPQS Prep (Maintaining Cisco Service Provider Quality of Service). - Online training available. Click test names to see online training options.

    Are there prerequisites? Testers are required to have either an up-to-date CCNA Service Provider Operations certification, or any Cisco CCIE Certification before taking the CCNP Service Provider Operations Certification.

    Average Salary for Certification holder: Certified CCNP network engineers earn $56,422 to $80,408; information technology managers earn $65,274 to $96,075.16.

    The New CCNA Voice: Did it Just Get Harder? | real questions and Pass4sure dumps

    Dave Schulz guest blogs again today about Cisco's voice certification changes. Dave asserts that the new CCNA Voice - due to the new ICOMM exam - looks like it raises the bar a bit on getting your CCNA Voice certification. Similar to his post last week, Dave examines the new ICOMM 8.0 course to help interpret more detail about the kind of materials you might expect to see in the new ICOMM exam. Dave is a Voice instructor for Skyline ATS, author of the new CIPT2 Quick Reference from Cisco Press. Do you agree that ICOMM makes CCNA Voice more challenging? Also, it's your last chance to toss a question out to Dave, since this is his final round of posting for his guest appearance. Thanks, Dave! 

    Today's blog will be addressing the changes for CCNA voice. The changes released by Cisco in the past week affect the CCNA voice, as well as, the CCVP (now CCNP voice) certification programs. The CCNA voice certification still requires a valid CCNA certification. The old CCNA Voice then required you to pass either the IIUC (640-460) or the CVOICE (642-436) exams. If you are currently working on this path, you have until the end of February to complete the certification path.

    The new CCNA voice replaces those two older exam options with the new ICOMM (640-461) exam. This exam has an associated training course, Introducing Cisco Voice and Unified Communications (ICOMM) v8.0. Similar to last week's post on CIPT1 and CIPT2, this post examines the new course to see what conclusions we might make about the new ICOMM exam.


    The course is supposed to be introduction to Cisco Unified Communications, which covers Cisco Unified Communication Manager, Cisco Unified Communications Manager Express, Cisco Unity Connection, and Cisco Unified Presence. Some of you may be saying... "Four products in a 5-day course?"  Yep, you heard it right. And, since you are already having so much fun.... Even though this course has "Introducing" as the first word in the title, and sounds to be and "Administration" course, it is neither an administration-level nor an introduction-level course. 

    A lot of assumptions are made regarding the level of knowledge that would be a pre-requisite for this course and exam. The course itself states the learner should begin the course with a working knowledge of converged voice and data networks, knowledge of gateways, and Cisco Unified Communications Manager and Cisco Unity Connection.  Oh, did I say the title of this class begins with the word, introducing? So, does there appear to be a gap in the CCNA certification and the learners' enrollment in ICOMM?  Well, you be the judge. However, do not get excited at the first view of this 5-day course, thinking.... I can take this 5-day course, pass a test and I am a CCNA Voice. Yep.... And you can go to Cisco and take the CCIE voice exam and in one-day become a CCIE!  Easier said than done!

    Seriously, I think there's a gap between the topics in CCNA and what you need to start ICOMM - at least based on the course. After you complete the CCNA, you will need to get more understanding of these products and technology before you enroll in the ICOMM course, as well as, changing one's understanding of what "introducing" and "administration" means.

    Specific topics:

    Anyway, the ICOMM course and exam cover a host of information regarding these four products dealing with interfaces, users and user configuration, and some design concepts of these products. Voicemail integration, call flow, and presence server configuration and are also discussed, along with QoS concepts, dial-peer configuration, and host of features and mobility concepts.  The level of maintenance and administration covered in this course is quite advanced covering not only the DRF (disaster recovery system), but reports, Call Detail Records, and the use of the Real-Time Monitoring Tool.

    Bridging the gap:

    Just some suggestions here, if you are beginning your pursuit of the CCNA voice, then I would suggest (after you complete the CCNA) to take one of the following routes before beginning the ICOMM course. These options can include any of the following (to cover the pre-requisite of your understanding of Cisco Unified CM and Cisco Unity Connection):

    1.     Gain a working knowledge by your current involvement with voice technology on the job.

    2.     Enroll in a basic administration class (ACUCM and AUC). These classes are TRUE introductory classes that can be understood by anyone beginning their pursuit of CCNA voice. However, these do not cover Cisco Unified CM Express or Presence, but should be you a core understanding of voice technology as it applies to these two products.

    3.     Study and learn the voice technologies required by purchasing Cisco Press books, Quick Reference guides, reading the Cisco documentation, and building your own home lab.

    4.     Get a study partner - during my pursuit of the CCIE, I had a study partner that really helped provide encouragement, dig deeper into some of the more difficult concepts, and continue on with the pursuit, even when the going got tough

    (Note from Wendell: on the above, it will be interesting to see what's in the new ICOMM Cert Guide once it's available.)


    It appears that the bar has been raised on most of the certifications paths. Some of this is due to the new products and technologies being covered, some might been due to Cisco's attempt to minimize the gap between the CCNA voice, CCNP voice and CCIE voice. However, don't let anything discourage you from pursuing your dream and achieving CCNA voice or any other certification. Stay the course!

    Cisco's October Certification Announcements:

    Cisco Announces Changes to CCNP Voice

    Cisco Adds Another Exam to CCNA Voice

    Cisco Announces Changes to CCNP Security

    A Deeper Look at the New CCNP CIPT1 8.0 and CIPT2 8.0 Course/Exams

    Join the Network World communities on Facebook and LinkedIn to comment on topics that are top of mind.

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    Cisco 642-437 Exam (Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)) Detailed Information


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