Nortel Networks NN43011-110 manual Small System as a branch office, Survivable IP expansion

The Small System as a branch office 31

Survivable IP expansion

IP Expansions can be configured to be survivable in the event of a link failure or a catastrophic failure of the Main.

Based on the system configuration, if IP connectivity to the Main is lost or a manual command is issued, an IP Expansion can enter survival mode, in which it acts as a fully functional "stand-alone" system.

The number of survivable Expansions allowed on one system is controlled through a software license called "Survivability", which has a range of 0–4. The license default value is zero.

Voice distribution over a Campus Data Network

IP expansion connectivity provides a high-capacity, cost-effective solution that can distribute Small Systems over a high-performance data network.

Full feature functionality and non-blocking architecture is maintained when systems are distributed over high-performance data networks. This patented solution delivers the exceptional functionality and reliability of legacy systems, while delivering the benefits of voice and data convergence.

Packaging requirements

IP connectivity is provided by IP Expansion (IPEX) package 295. If the IP Expansion package is restricted, IP connectivity between the Main and IP Expansion is not allowed, whether or not IP daughterboards are connected to the Main. CE-MUX expansion is not a separately packaged option, but does depend on IP Expansion (IPEX) package 295.

The Small System as a branch office

The Branch Office feature extends Communication Server 1000 features from a main office to one or more branch offices. The branch office connects to the main office over Virtual Trunks on a LAN or a WAN.

A CS 1000M Small System can function as a main office.

With CS 1000 Release 4.5 software, customers can reconfigure existing satellite Small Systems to function as branch offices to their main office IP PBX. This configuration allows customers to incorporate systems that were previously stand-alone into a Branch Office network. In this configuration, the main office can be any CS 1000S system or CS 1000M Large System or Small System operating CS 1000 Release 4.5 software. Any single-cabinet or single-chassis Small System is eligible for conversion to a branch office.

For more information about the Branch Office feature, refer to Branch Office: Installation and Configuration (NN43001-315).

Nortel Communication Server 1000

Communication Server 1000M and Meridian 1 Small System Overview

NN43011-110 01.01 Standard

Release 5.0 30 May 2007

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