Tolly Report Overview

Sponsor:   Nortel     View all reports from this sponsor

Title: Nortel Networks Forges Broad IP Telephony Strategy for Enterprise Nets

Publication date:   01 June 2003
Document number:    203504


The Tolly Group inspected Nortel Networks’ Succession 1000 IP PBX and its IP Telephony convergence architecture for a multitude of features, functions and performance — including call quality, reliability, effectiveness of management characteristics, usefulness of standard and advanced features, and availability characteristics. Nortel Networks commissioned the study.

Nortel Networks’ Succession 1000 is an IP-based platform that unifies voice and data onto a single, high-performance, QoS-enabled network infrastructure. Call and connection management are distributed across the network to guard against any single point of failure; switching is fully packet based, and management of voice and data is unified. And, with all the telephony features of a traditional PBX, and new innovative features made possible by IP technology, the Succession 1000 is an extremely elegant and scalable platform for enterprise networks.

The Tolly Group’s examination of Nortel Networks Succession 1000 IP PBX reveals a converged network architecture that is rich in features, rock solid in reliability and provides unsurpassed levels of flexibility to enable users to adopt a converged IP infrastructure at the pace they so desire.

From an architecture standpoint, Succession 1000 delivers distributed IP call processing that ensures that device failures of critical components not impact call processing to any major extent. Nortel Networks has gone to great lengths to replicate key portions of Call Server and Signaling Server software at different points across the network – providing not just secondary backup, but tertiary backup contingencies to ensure call processing continues even in the unlikely event of critical device failures.

Nortel Networks Succession architecture also provides the framework for third-party PBXs and other devices to connect into the converged network. This is extremely important for organizations that don’t wish to scrap legacy investments in PBXs, or in third-party switches at remote sites and branch offices. Utilizing Succession 1000 gateways, non-Nortel Networks gear can co-reside in a converged voice/data network utilizing an underlying IP network based largely upon Nortel Networks gear.

Testing also validated that Nortel Networks converged network infrastructure surpasses toll-quality standards for voice call quality and establishes a high watermark of “excellent” call quality at various critical points across the converged network. Certainly, Nortel Networks Succession 1000 call quality scores were as good or better than those delivered by other network products tested over time by The Tolly Group.

And, with hundreds of features, it is evident that Nortel Networks will continue to fine-tune standard IP PBX functionality as well as invent advanced capabilities such as virtual office, ad hoc conferencing and malicious call trace. From an applications perspective, all one needs is to tinker with CallPilot to understand the enormous implications it can have for any business. And any road warrior will pencil in Personal Call Director as a must-have tool. Nortel Networks is also giving users wireless options for handsets with its support for Symbol Technologies NetVision 802.11b wireless IP phones.

Lastly, Nortel Networks has pulled together voice and data management nicely under the Optivity umbrella. Initial device configuration and direct management of Succession 1000 elements is provided by the Succession 1000 Element Manager, while an Optivity Telephony Manager application is used for administrative reports, billing oversight, alarm notification and a variety of network-wide management services. And, all the while users manage Succession elements via Web interfaces, or optionally via CLI interfaces, should they so desire. Again, Nortel Networks stays true to the flexibility of providing users the options they prefer for operating and managing their converged nets.

Number of pages: 28      Publication price: $0.00

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