|Exam Name||:||Carrier VoIP Media Gateway 15000 Operations, Maintenance and Configuration|
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|Updated On||:||February 22, 2019|
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920-537 exam Dumps Source : Carrier VoIP Media Gateway 15000 Operations, Maintenance and Configuration
Test Code : 920-537
Test Name : Carrier VoIP Media Gateway 15000 Operations, Maintenance and Configuration
Vendor Name : Nortel
Q&A : 50 Real Questions
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OTC Bulletin Board : NRTLQ
October 21, 2009 09:01 ET
New SIP-primarily based Session conscious Media Gateway Equips provider providers to bring excessive quality Voice and advanced IP Multimedia Securely to Subscribers
CHICAGO, ILLINOIS--(Marketwire - Oct. 21, 2009) - Supercomm 2009 reveal attendees will get a preview of the latest Nortel(1) (OTCBB:NRTLQ) service VoIP and utility solutions (CVAS) innovations that handle challenges service providers face as they expand their latest VoIP networks with SIP access from SMB and residential customers and extend to SIP peering across any IP entry type - including wireline, broadband, wireless and cable networks.
brought on the Supercomm tradeshow this week, Nortel's new Border manage Media Gateway 1000 (BCMG a thousand) is an IP-to-IP session mindful media gateway that leverages Nortel's business-main IPR and patents to raise service provider competitive capabilities by improving voice excellent and protection. The Nortel Transit and Multimedia Interconnect answer equips service suppliers with advanced IP media inter-working, encryption and IP voice enhancements, which increase the subscriber event and permit users to speak with any individual over IP, regardless of the other person's machine or media class.
"As VoIP and multimedia solutions and applications have develop into more greatly deployed, carrier providers need help addressing IP media impairments that have turn into greater standard in their multi-entry networks," referred to Jeremy Duke, Founder and predominant Analyst, Synergy analysis. "This creates an rising marketplace for session mindful media gateways like Nortel's BCMG a thousand, which helps service suppliers to deliver communications across distinctive IP networks and increase network exceptional, safety and reliability."
"Nortel CVAS is investing in ingenious carrier choices, just like the BCMG one thousand, that aid carrier suppliers raise subscriber loyalty via featuring high great IP communications and security to conclusion users," observed Samih Elhage, president, CVAS, Nortel. "Nortel's BCMG is a key aspect of the business's Transit and Multimedia Interconnect answer and is designed to in the reduction of carrier providers' operational costs with the aid of removing the deserve to upgrade or change older legacy CPE since the solution makes it possible for the connectivity to guide evolving community features. This new product embodies over a decade of Nortel packet media gateway adventure and IPR to set the stage for the next era of session mindful media gateways."
Nortel's BCMG a thousand IP-to-IP media gateway and SIP border control Interconnect solution offers end-to-conclusion SIP interoperability between legacy, NGN and IMS terminals, site visitors policing and marking, and can provide extra comfy connections. The BCMG a thousand enhances the company's Transit and Multimedia Interconnect solution and supports provider providers' capacity to:
- handle challenges with multi-access IP community convergence through the use of powerful transcoding and media adaption thoughts to permit subscribers to speak with any individual over IP, regardless of the different user's equipment or media class.
- enhance exceptional of voice with the aid of eliminating echoes, background noise, and other impairments.
- give security measures to block hackers and different malicious use, akin to denial of provider assaults, spoofing, provider theft, fraud, and eaves shedding.
- permit more deployment flexibility since it is a Linux-based mostly hardware impartial answer and, it might interoperate with any requirements-compliant call Server, Softswitch, SIP application server and/or community media node.
- reduce operational costs through: casting off the should improve or replace older legacy CPE because the solution enables the connectivity to guide evolving network; and managing an IP-IP media gateway and a session border controller simultaneously whereas charge effectively guide both capabilities in one.
Nortel's BCMG a thousand is presently available for client trials and is anticipated to be commonly purchasable within the 2d half of 2010. The solution is featured alongside a number of other carrier VoIP solutions in Nortel's Supercomm sales space (#2120) in Chicago this week. For extra counsel on Nortel at Supercomm, seek advice from www.nortel.com/events.
Nortel has shipped greater than 115 million carrier VoIP and Multimedia ports to greater than 350 wireline and wireless carriers globally. according to Infonetics analysis's recent document, carrier provider VoIP device and Subscribers Market Share, dimension, and Forecasts - 2Q09, Nortel saved its international leadership position for carrier softswitches with 30.2 p.c market share. additionally, in accordance with Infonetics, during the second quarter of 2009, Nortel saved its place because the dominant softswitch agency in both North the us and EMEA. in accordance with Dell'Oro, Nortel has consistently been ranked as the #1 world carrier VoIP and Softswitch chief due to the fact 2002. Nortel CVAS has client deployments in all continents with main carriers and provides VoIP solutions to 2 thirds of IDC's international listing of right 20 carriers (through salary).
Nortel delivers communications capabilities that make the promise of enterprise Made primary a truth for our purchasers. Our next-era technologies, for both service issuer and business networks, aid multimedia and company-crucial functions. Nortel's applied sciences are designed to support get rid of trendy obstacles to efficiency, speed and performance via simplifying networks and connecting individuals to the counsel they need, once they need it. For extra suggestions, discuss with Nortel on the internet at www.nortel.com. For the newest Nortel news, consult with www.nortel.com/information.
definite statements in this press free up might also comprise phrases reminiscent of "could", "expects", "may", "anticipates", "believes", "intends", "estimates", "targets", "envisions", "seeks" and other similar language and are considered forward-looking statements or information beneath applicable securities legislation. These statements are in line with Nortel's latest expectations, estimates, forecasts and projections in regards to the working environment, economies and markets during which Nortel operates. These statements are discipline to vital assumptions, dangers and uncertainties, which might be complex to foretell and the genuine outcome may be materially distinct from these pondered in ahead-looking statements. For more information with admire to definite of these and different components, see Nortel's Annual document on Form10-k, Quarterly reviews on kind 10-Q and different securities filings with the SEC. except in any other case required through relevant securities legal guidelines, Nortel disclaims any intention or responsibility to update or revise any forward-looking statements, even if on account of new assistance, future routine or otherwise.
(1)Nortel, the Nortel logo and the Globemark are emblems of Nortel Networks.
Use of the terms "partner" and "partnership" does not suggest a criminal partnership between Nortel and some other celebration.
entertaining Infonetics record saying provider voice device purchases are growing to be very unexpectedly with VoIP being a primary driver in carriers changing antiquated gadget. if you didn't understand it already, it looks more and more like VoIP could be the "shot" within the arm for the telecom market. could the first rate ole' days (mid-to-late 90's) of double-digit profits boom for the carriers be a long way in the back of? Nah... Too tons competitors and margins are slimmer this present day, but the carriers do need to optimize their networks and offer greater built-in functions to compete. IMS any individual? :D here is splendid for the customer, no longer so wonderful for the carriers that must lay out extra cash. incredible for the manufactuers of all this device as smartly. right here's the Infonetics document summary...
worldwide next gen voice equipment income hit a brand new high in 2005, topping $2.5 billion, a 50% hop over 2004, and is projected to enhance a hundred forty five%, accomplishing $6.2 billion in 2009, in keeping with Infonetics research's newest carrier provider subsequent Gen Voice and IMS device file.
All equipment categories within the next gen voice market are up yr over yr, and all however media servers and sophistication 5 softswitches are up for the quarter.
The variety of residential and SOHO VoIP subscribers continues to skyrocket around the world as neatly; in 2005, there have been:- 14.2 million subscribers in Asia Pacific, starting to be 251% to forty nine.9 million in 2009- 5.4 million subscribers in EMEA, becoming 683% to 42.5 million in 2009- 4.3 million subscribers in North the us, growing 800% to just about 39.0 million in 2009
"2005 become a watershed year for subsequent gen voice, with VoIP subscriber uptake moving at a torrid tempo, and numerous incumbents all over committing to long-time period migration tasks that allows you to result in increased legacy change removing and greater next gen voice machine deployments," referred to Stéphane Téral, directing analyst at Infonetics research.
"We're keeping a detailed eye on the emerging IP multimedia subsystem (IMS) structure, which moved from hype to trial stage in 2005," Téral continued. "We track a number of IMS products now, and as the haze around IMS clears and new products start transport, we will track more gadget during this critical new phase."
greater Highlights- a total of $21 billion might be spent on subsequent gen voice device global throughout the five-12 months period between 2005 and 2009- international subsequent gen voice equipment earnings become up 21% for the quarter, turning out to be to $785.three million in 4Q05- Between 3Q05 and 4Q05, trunk media gateway salary become up 39% to $375.2 million and softswitch profits changed into up 6% to $321.1 million- For 2005, Nortel continued its lead in the mixture media gateway/softswitch market, Siemens takes second location, and Huawei emerges in third- Huawei's softswitch license shipments rank first for the quarter and calendar 12 months with 26% market share global in 2005
Infonetics' file tracks VoIP subscribers and provider packet voice device, together with media gateways, softswitches, session border controllers, voice utility servers, media servers, and home subscriber servers. The report provides evaluation and rankings for Alcatel, Brooktrout, Cirpack, Cisco, Convedia, Ericsson, generic Bandwidth, Huawei, Italtel, Lucent, Metaswitch, NetCentrex, Nortel, Siemens, Sonus, Tekelec, UTStarcom, Veraz, Xener, and others.
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Telecoms.com periodically invites expert third parties to share their views on the industry’s most pressing issues. In this post, Bill Kaufmann, Group Product Manager, SDN Planning at Coriant, explores the benefits of SDN to mobile backhaul networks and looks at best practice for implementation.
Mobile services and mobile backhaul (MBH) networks are under pressure from a variety of technology, market, and financial forces. Bandwidth demand from mobile devices (smartphones, tablets) is exploding, driven by streaming media and real-time communications applications. With LTE-A and 5G mobile user throughputs rising to 1G and beyond, it is becoming increasingly costly to backhaul all traffic to the network core.
A new generation of services – and rising end-user Quality of Experience (QoE) expectations – will be far less tolerant of latency and congestion. As new Over the Top (OTT) applications appear with increasing speed, carriers will struggle to respond on short notice to user and service demand. The predicted proliferation of low speed sensor traffic and network attached devices for Machine Type Communications (MTC) will require ultra-high reliability connectivity to private monitoring facilities rather than traditional mobility gateways.
These trends point to the need for a less hierarchical, more dynamic, and performance-aware mobile backhaul network at a time when financial pressures demand more efficient network utilization, more efficient network operations, and innovative new services. Fortunately, implementation of Software Defined Networking (SDN) in mobile backhaul networks can help meet these challenges.
There are 3 key SDN concepts that promise substantial benefits in mobile backhaul networks:
Together, the introduction of an external control plane and programming APIs, on top of a robust network infrastructure, will enhance backhaul configurability and optimization to improve flexibility and responsiveness of the mobile network.
These concepts point to a distinct set of lead SDN applications for mobile backhaul networks.
Improved Network Utilization and Operation. Excess capacity is commonly provisioned in MBH networks in the form of protection links in case of network outages. In addition, steady state network traffic usage is often capped at 60-70% of total link capacity to accommodate bursty traffic patterns. This combination of design criteria leads to networks operating at only 30-40% of potential capacity. With SDN, new network optimization policies such as re-routing bursty traffic to alternate paths based on congestion, or making use of protection paths to accommodate unpredicted bursts, can be enforced.
Today’s mobile networks were designed to direct all traffic to a central core, but as traffic patterns change and pass between cell sites, and as virtualized services replace static gateways, more efficient traffic distribution to local handoff points can reduce network load to the mobile packet core. Coriant analysis has estimated that more flexible bandwidth allocation in response to application-driven traffic requirements can generate total mobile backhaul capital expenditure savings of up to 35%. Moreover, by presenting a simplified network view to higher-level management tools, the operating cost and complexity of defining new services and building connectivity to new carrier services is significantly reduced.
Operating expense benefits from SDN will be achieved through a streamlined network management and control environment.
Automated S1 Interface Provisioning, Re-homing, and Optimization. The S1 interface from cell site to Evolved Packet Core (EPC) is the most fundamental LTE interface. Today, this link is typically configured once and left in place. Manual input by network administrators is generally required for new service configuration or updates. Granular service configurations and circuit mappings must be input via cumbersome command line interface (CLI) or other legacy management protocols (e.g. SNMP). Processes involving multiple configuration and management systems are difficult to adapt to new services, and impose long service activation cycles. Optimizing in-production services poses an even greater challenge.
With SDN, this static deployment model can change to streamline operations and accommodate future virtual network designs and IoT services. A dynamic path control plane can automate S1 activation to virtual gateways, turn on small cells as needed based on network usage, and optimize the S1 path in real time based on network performance, alarms, or congestion from other sites and applications.
More broadly, SDN automation can ensure optimal routing to maintain QoE across mobile backhaul and fixed-mobile converged networks and can be linked to on-demand service delivery.
Network Support for Distributed Virtual Gateways (Smart Mobile Cloud). In the dynamic network of the future, instead of directing traffic to one central gateway, a mix of virtual resources (EPCs, ADCs, security gateways, etc.) will be available on demand, just as virtual servers are activated in data centers today. Virtual appliances will be distributed to more effectively cover urban metro areas, rural communities, enterprise customers, or dedicated IoT applications.
To support this dynamic environment, access and aggregation networks must adapt in real time to provide connectivity on the fly as virtual resources are activated. SDN-based network automation is required where destination routing using static MPLS tunnels does not provide sufficient flexibility. Using SDN, end user traffic can be re-homed toward newly activated resources, or diverted to available capacity for load balancing.
As L4-7 functions (e.g. firewalls, NAT, DPI, load-balancing, etc.) move to virtual platforms, SDN can activate connectivity on-demand to new service instances. Ultimately, the growing distribution of services throughout metro networks will lead to intelligent IP/MPLS and virtual appliances at the edge, and a multi-layer, multi-domain SDN control structure to support a dynamic new service environment.
Mobile backhaul networks are on the cusp of major re-design to support next generation wireless services. SDN promises to make this transition possible along with improving utilization and user quality of experience. While these benefits are alluring, in practical terms SDN will be implemented in networks with large amounts of legacy equipment. The migration of legacy networks to SDN control is perhaps the most critical technical challenge for service providers.
With the significant capital investment and operational complexity ingrained in existing MBH networks, network planners must carefully evaluate different approaches to SDN as they undertake initial rollouts over the next 2-3 years. Having a clear understanding of the highest potential applications for SDN in MBH, as well as developing consistent criteria for solution evaluation, will be essential to gain maximum benefit from these initial deployments.
Bill Kaufmann, Group Product Manager, SDN Planning, Coriant
The new WCAU-WWSI facility, set for a grand opening sometime this fall, is IP-centric and is designed to not only give the two stations a more efficient space with a common technology infrastructure, but to give their personnel new flexibility in creating content for today’s multiplatform world.by Glen Dickson October 11, 2018 11:23 EST
The first thing you notice when entering Studio A at the new, state-of-the-art facility where NBCUniversal Owned TV Stations Division’s WCAU Philadelphia newscasts will soon be produced is an enormous cityscape behind the anchor desk.
Measuring 20 feet across by 10 feet high, the image is not unlike those on many TV stations these days. Except that on this one, flags are moving in a slight breeze and the water of the Delaware River is flowing by on a gray, overcast day.
“It’s a 4K LED monitor which will broadcast 4K video from a 4K camera,” explains Ric Harris, president and general manager of NBC10 and sister station WWSI (Telemundo62). “It’s going to give us the best skyline shot of Philadelphia.”
The facility, also home to WWSI, offers great views from any of its windows. It’s located on three floors (12-14) of the 60-floor, 1,121-foot Comcast Technology Center in downtown Philadelphia.
Inward from Studio A, you can look across a glass enclosed, two-story atrium to see a similar studio — just steps away — where the WWSI anchors will sit in front of another, only slightly smaller, 4K monitor.
An open staircase just outside the entrance to Studio A descends to a large, open newsroom, flooded with daylight from the atrium’s main wall, where reporters and producers from both stations work together.
But the real marvel of the place may not be the architecture and interior design, but the cutting-edge fibered-linked IP infrastructure at its core.
The open newsroom
“I didn’t want to be restricted by traditional SDI routers, and I wanted the ability to put video coming in and have it go anywhere else in the plant,” says Tony Plosz, WCAU-WWSI VP of engineering and operations.
“I also wanted the flexibility so that staff could use any system, and work anywhere across the floors, or even in the field. The ‘anywhere, anything’ philosophy was really big in the design.”
Having originally planned to launch in late 2017, NBCU has been letting its 2018 launch date — now set for sometime this fall — quietly slip as engineers work to finalize software and staff gets up to speed on updated platforms.
“We are using the latest versions of the technologies we have installed, and we are working now to make sure everything works together as it should,” Harris says. “We will launch when we know it’s right.”
The stations’ sales, traffic, finance and human resources departments have already moved in and news, creative services and engineering staff have been splitting time between the new space and the existing station in suburban Bala Cynwyd, which will eventually be vacated.
“It’s been a long road, and like any other large-scale project, we’ve made changes along the way,” says Plosz. “It’s been a lot of fun, seeing a concrete slab turn into functioning office space.”
Integration And Connectivity
Comcast Technology Center is run by NBC parent Comcast and real estate investment trust Liberty Property Trust. Besides the stations, the other primary tenants are Comcast and a Four Seasons Hotel, which occupies the top of the building.
LF Driscoll is the general contractor of the building with Diversified handling the technical integration for the broadcast facility.
The broadcast facility will accommodate about 180 employees. An additional 60 employees, such as photographers and reporters, will mostly stick to the field.
The move into the new facility is allowing NBCU to further integrate WCAU with WWSI, which it acquired in 2013. “We’re taking it another step further here, and they are truly on the same platform,” says Plosz. “They have identical control rooms, the same technology in the studios, everything is the same. Before, so much was put together on the fly, while here we start from complete scratch.”
Another of the goals is to better integrate broadcast and digital production. Reporters, producers and anchors working on a show gather at a pod — one of several long narrow black tables topped by black monitors — where they can collaborate as they get closer to air. Steps away is the digital pod for both stations, and immediately behind that is the assignment desk.
“It’s all connected,” Harris says. “Weather, show pods, digital, assignment desk — all within steps of walking to one another.”
The open floor concept contrasts with the chopped-up configuration in Bala Cynwyd where Plosz says “everybody was in their own little corner or section. There’s no hunting for someone, all the core groups are on 12.”
Nestled next to Studio A — and a few feet away from a reception desk — is Harris’ office. “This is a microcosm of what the station is about,” he says. “There is a sense of connectivity. My office isn’t off in the hinterlands. I’m centrally located so I have access to our folks and the team has access to me.”
There are three studios. The 2,600-square-foot Studio A for WCAU, a 2,400-square-foot studio for WWSI and a 1,500-square-foot auxiliary studio with a large green screen that covers the entire rear wall, giving the station the opportunity to do full virtual set operation in the future.
Plosz sees that third studio as a “really flexible space” that will be used for special news segments as well as being employed by creative services to produce commercials for local advertisers.
The 13th floor houses back-office functions including sales and traffic as well as executive offices. The 14th floor contains the finance and human resources departments, a large conference room and the Central Equipment Room (CER), which represents the technical guts of the facility.
IP At The Core
The routing core is a Cisco 100-gigabit Ethernet “Fabric for Media” architecture that links to Grass Valley IPG (IP gateway) cards, allowing the stations to take video and “route it via IP to wherever it needs to go,” says Engineering VP Tony Plosz.
When the stations did the technical design 2.5 years ago, Plosz opted to go with an IP routing core. But at that point the SMPTE 2110 standard didn’t yet exist, and vendors at the 2016 NAB Show were mostly talking about supporting the IP transport of content instead of actually doing it.
“When we did the proof of concept with Diversified in Atlanta, it was little different than traditional TV stations they had done,” says Plosz. “There were a lot of things that didn’t exist.”
Since he couldn’t design a completely IP operation in 2016, Plosz opted for an IP core, with no traditional SDI router, but “off-ramps to SDI” throughout the stations’ operations. The routing core is a Cisco 100-gigabit Ethernet “Fabric for Media” architecture that links to Grass Valley IPG (IP gateway) cards, allowing the stations to take video and “route it via IP to wherever it needs to go,” says Plosz.
“When we first started this endeavor, we didn’t know who was making what,” says Plosz. “There was [SMPTE] 2022-6, and 2022-7, but we didn’t know what would be compatible. Over the course of two years the design changed, as even more things went native IP.”
For example, in that time Ross Video’s graphics went from “SDI islands” to direct IP, he notes.
The Cisco routing switches are configured in a traditional spine-and-leaf architecture, says Plosz, with distributed routing across the entire central equipment room. That allows the station to easily plug in new equipment to the top of a rack and cuts down on overall cabling. There is no need to run cable to one back row, as the whole router is distributed across mulitple rack rows.
When Plosz began looking in 2016 at broadcast vendors to support the IP infrastructure, he quickly narrowed the choices to Grass Valley and Evertz and eventually settled on Grass Valley.
At that point Evertz already had some large IP installations at major broadcasters like ESPN, using its proprietary ASPEN video-over-IP transport protocol.
“They did so well before there were any standards created — they were moving IP packets and they had some mature product,” says Plosz. “But what was the difference between that and a traditional SDI router? They were moving IP video around, but it was still done through their own switch, and you couldn’t move other data through it. Did I really want to replace one proprietary router with another?”
In the end, Plosz thought that Grass Valley had a more comprehensive long-term vision for IP routing and would “be better partners through the science project.”
One of his design criteria was that if the station was going to build its routing on a COTS (common off-the-shelf hardware) switch, it still needed the full support of whatever traditional broadcast vendor was interfacing with it.
“Grass Valley is our ‘one throat to choke,’ so to speak,” jokes Plosz. “We have a great relationship with Cisco, but if we have any issues, we go to Grass Valley.”
In addition to the IP gateways, Grass Valley has also supplied its LDX 86 studio cameras. Besides Cisco and Grass Valley, other key vendors for the new facility include Dalet Galaxy asset management, Ross Overdrive production automation, Adobe Premiere nonlinear editing, Lawo audio processing and EMC Isilon solid-state storage.
Fiber, Fiber Everywhere
Being part of the Comcast enterprise means this new facility has an incredible amount of fiber-optic connectivity. That is important when housing a station in a skyscraper, notes Plosz, as he’s not going to place a microwave tower on the roof.
“This building is extremely well connected, and the levels of redundancy here are nothing short of staggering,” says Plosz. “There’s half a terabit per second of I/O in and out of this place, with two complete diverse paths.”
WCAU-WWSI GM Ric Harris
In all, there are 60 miles of fiber in the Comcast Technology Center with 1,100 access points. All the major wireless carriers have multiple transmitters in the building, says Plosz, and cellphones work even in the “deepest, darkest corner” in the parking garage.
“It’s a phenomenal data system,” he says.
All of the beauty cameras the stations use around Philadelphia now run on the Comcast IP network. The facility is also converting its studio-to-transmitter link to IP with two physically diverse 100-gigabit fiber paths.
The transmitter site is in Roxborough, northwest of downtown.
“There’s still some microwave gear there, and a little satellite farm,” says Plosz. “We’re going to extend our Media Fabric over fiber out to Roxborough and make it part of our [network], an operator here could pull from there and won’t know any difference. We wouldn’t be able to do that without the connectivity we have.”
The new broadcast facility is designed to be one of the most energy-efficient TV operations in the country. It uses heating/cooling and ventilating systems that improve indoor quality and reduce noise, and incorporates other green features like capturing natural light from its wall-to-floor windows, water and energy conservation throughout and automated window shades to reduce summer heat. The stations have also tried to use Energy Star-compliant displays and computers wherever possible.
The stations have applied for an LEED Platinum certification, which if approved by the U.S. Green Building Council, would be the first time a local broadcast TV station achieves the Platinum LEED level.
Another unique feature of the Comcast Technology Center is the sheer volume of broadcast service panels located throughout the building, including in the lobby, outside on the street, in the cafeteria and the building’s “town hall space,” and in several locations within the Four Seasons Hotel including the ballroom and restaurants on the top two floors.
“We already treat our newsroom as a fourth studio,” says Plosz. “Now the building becomes that fifth studio — there are so many places to easily plug in and go live.”
Kathy Haley contributed to this story.Tags: Adobe, Cisco, Comcast Technology Center, Dalet, Diversified, EMC Isilon, Grass Valley, IP, Lawo, NBCUniversal, New Facilities Insider, Ric Harris, Ross Video, Tony Plosz, WCAU Philadelphia, WWSI Philadelphia
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