User's Manual

provided by Nortel Network Routing Service (NRS). The NRS provides following three
services:
• SIP Proxy Server (SPS): SPS performs two roles in CS1000-based configuration. These
roles are SIP routing proxy and SIP registrar.
• Network Connect Server (NCS): NCS supports the centralized CS1000 solution for IP
clients, that is, IP phones.
• H.323 Gatekeeper (GK): GK provides typical H.323 gatekeeper functions to H.323
endpoints in the solution.
Session Manager provides both the SIP Proxy Server (SPS) and Network Connect Server
(NCS) functionality that are provided by Nortel NRS.
Session Manager provides the following information to each UNIStim phone:
• Primary signaling server
• Secondary signaling server
• Branch Office, Survivable Media Gateway or Survivable Remote Gateway
The Session Manager NCS provides network redirection services for UNIStim phones for
several CS1000 network features, such as geographic redundancy, virtual office, branch office,
and Survivable Remote Gateway. You can define user patterns, which are administered as a
NRS Proxy User Rule in Session Manager, and associate user patterns with up to three CS
1000 Terminal Proxy Servers in priority order. Since a large number of users share the same
server set, you can administer a range for the user pattern to match a large set of users.
Redirecting UNIStim Phones
About this task
In normal conditions, all UNIStim phones in the system should be configured with their Primary
Connect Server, Primary CS 1000, pointing to the local Primary Session Manager and the
Secondary Connect Server, Secondary CS 1000, pointing to the Secondary Session
Manager.
Following are the administration steps:
Procedure
1. Point each SIP Signaling Gateway from the SIP Proxy Server (SPS) to the Session
Manager. See CS1000 documentation.
2. Reconfigure NCS pointing to Session Manager. See CS1000 documentation.
3. Create Terminal Proxy Server instances for Primary signaling server and Secondary
signaling server as per your system requirement.
4. Create Terminal Proxy Server instances for each Branch Office, Survivable Media
Gateway, or Survivable Remote Gateway 50.
Application Configuration
Administering Avaya Aura
®
Session Manager November 2010 417