Signaling Server - Nortel SRG200 Configuration Manual

The diagrams throughout this documentation show a CS 1000S main office.
All of the systems appearing in the list perform identical main office
functions as far as the SRG is concerned. For information about the SRG, see
the SRG200/400 Release 1.5 Configuration Guide.

Signaling Server

The Signaling Server is required at the main office only. It provides the
following functions:
• Terminal Proxy Server (TPS)
— The TPS provides a connection from the IP Phones to the Call
Server. It also provides a connection path from a virtual trunk to the
Call Server.
• Web server for Element Manager and Network Routing Service (NRS)
Manager
A second Signaling Server can be used to provide redundancy in the case of
failure in the primary Signaling Server at the main office.
A similar function to the Signaling Server exists at the SRG.
The Signaling Server supports en bloc signaling, which is standard on the
Signaling Server.
For more information about the Signaling Server, see Signaling Server
Installation and Commissioning (NN43001-312). For more information
about H.323, see IP Peer Networking Installation and Commissioning
(NN43001-313).
Network Routing Service
The NRS application provides network-based routing, combining the
following into a single application:
• H.323 Gatekeeper — provides central dialing plan management and
routing for H.323-based endpoints and gateways.
NRS also contains SIP Redirect Server but SIP Trunks are not supported
on an SRG.
Main Office Configuration for SRG200/400 Release 1.5
Overview Page 19 of 254
Configuration Guide