nortel vo'

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Nortel Nortel Carrier VoIP & Applications Solutions: World number 1 in Carrier VoIP with 350 carriers and 115+ million ports.

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Nortel's Carrier VoIP Application Solutions (CVAS) deliver fully-featured, carrier-grade telephony, data and multimedia services for NGN, IMS or Web 2.0 environments over wireline, wireless and cable networks. Nortel's IP Powered Business Solutions combine next-generation VoIP technology with planning, installation, management and technical support. Two new network solutions include an end-to-end VoIP Lines Solution for businesses without specialized IT staff, and IP PBX Interconnect Solution for customers who prefer an onsite PBX. Why do you need it?

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Will it be difficult to set up? Nortel offers all-in-one boxes that include the components required to build SMB (small- to medium-sized business) data networks that can handle voice and whatever other traffic they need to. They contain everything from routers, wireless and wireline switching, SIP (Session Initiation Protocol) gateways and analog telephone adapters to firewalls, VPN (virtual private network) and intrusion-detection capabilities. Perhaps most importantly, they prioritize bandwidth so that time-sensitive traffic like voice gets top priority over less crucial packets.

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Will this save money? Buying the all-in-one boxes can cost some 45 percent less than buying the various components separately. Doing all of this cheaply is important because upgrading networks to handle voice isn't cheap. On the enterprise level, every dollar spent on IP telephony requires spending four or five dollars on upgrading the data network.

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What features do we offer? Voice and multimedia applications that integrate video conference and chat with digital TV. New VoIP-enabled dual mode phones use  Fixed Mobile Convergence  (FMC) solutions to seamlessly switch between WiFi and cellular networks. This handy solution helps users reduce their monthly mobile phone bills since airtime and long distance charges do not apply when the user roams into areas of WiFi coverage, such as the home or public retail locations. In the future, VoIP capabilities can also be integrated with blogs, eCommerce and social networking sites like eBay and Facebook so that people visiting these sites will be able to click a link to interact directly with other people through an online video conference or voice call straight from the web.

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The software used on Nortel products has been enhanced to incorporate improved reliability mechanisms such as self-stabilizing and fault tolerance. Self-stabilizing software means that the system will more readily converge to an error-free state autonomously. This has been achieved through higher coverage of hardware and software faults, an approach that is derived from Failure Mode, Effects, and Criticality Analysis (FMECA) military standards. Is it reliable?

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Nortel’s approach to fault tolerance is to focus on fault containment by mitigating the fault, rather than allowing a “knee jerk” reaction. This is achieved by implementing a more granular set of available responses to a fault. In this way fewer unnecessary high risk actions such as switching blade activity or software roll-backs are invoked especially for small, low impact faults. What about fault tolerance?

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The most expensive way to implement QoS in a network is to throw more bandwidth at the problem. A better way to address QoS is to implement a framework that allows for categorizing traffic and ensuring service levels are met by measuring and monitoring network traffic. As part of the planning for enabling QoS, Nortel IT reviewed the parameters and performance within each region to understand existing performance with respect to latency, jitter and packet loss, and how these mapped to industry recommended service levels for VoIP. Quality of Service

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Nortel decided to classify application traffic into four categories based on user and application expectations as well as traffic management best practices:  Gold or VoIP Telephony traffic.  Silver which includes multimedia traffic like conferencing, streaming, and broadcast video. Bronze which is low priority, latency tolerant traffic like email. A better solution