Nortel Networks SRG 50 NN43001-307 - Manual (Page 15)

Main office hardware description 15
Signaling Server
The following Signaling Servers are available for CS 1000 Release 5.0 :
• ISP1100
• HP-DL320-G4
• IBM-X306m
• Common Processor Pentium Mobile (CP PM)
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
and a connection from a Virtual Trunk to the Call Server.
• H.323 Gateway (Virtual Trunk)
• SIP Gateway (Virtual Trunk)
• CS 1000 Element Manager Web Server and Network Routing Service
(NRS)
• NRS, consisting of:
— SIP Redirect Server NRS
— H.323 Gatekeeper
— Network Connection Service (NCS)
• Personal Directory
A second Signaling Server can be used to provide redundancy in the case
of a failure in the primary Signaling Server at the main office.
A similar function to the Signaling Server is used at the SRG when the
phones are in local mode.
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 and overlap signaling, see IP Peer Networking Installation
and Commissioning (NN43001-313).
Network Routing Services
• The Network Routing Service (NRS) application provides network-based
routing, combining the following into a single application:
Nortel Communication Server 1000
Main Office Configuration Guide for SRG 50
NN43001-307 02.02 Standard
Release 5.0 3 December 2007
Copyright © 2005-2007, Nortel Networks
.