Nortel Networks NN43021-110 User Manual

Page 53

Hardware architecture

•

4 GB PC2-4200 ECC DDR2 SDRAM (2 GB configured

•

Two 10/100/1000BaseT Ethernet ports

•

One CD-R/DVD ROM drive

•

One serial port

•

Three USB ports

•

For more information about installing and configuring the HP DL320-G4
server as a Signaling Server, see Signaling Server Installation and
Commissioning (NN43001-312).

Terminal Proxy Server

The Terminal Proxy Server (TPS) acts as a signaling gateway between the
IP Phones and the Call Server using the UNIStim protocol. It performs
the following functions:

•

converts the IP Phone UNIStim messages into messages the Call
Server can interpret

•

allows IP Phones to access telephony features provided by the Call
Server

The TPS also controls IP Phone registration.

SIP/H.323 Signaling Gateways

SIP/H.323 Signaling Gateways are software components configured on
virtual loops, similar to IP Phones. They bridge existing call processing
features and the IP network. They also enable access to the routing and
features in the MCDN feature set.

Note 1: The SIP/H.323 Signaling Gateway must register with the
Network Routing Service (NRS).

Note 2: Virtual TNs enable you to configure service data without
hardwiring IP Phones to the CS 1000M system. Virtual TNs are
configured in LD 97.

To support IP Peer Networking, dual Call Servers in a CS 1000M must be
associated with Signaling Servers that run SIP/H.323 Signaling Gateway
software. The number of Signaling Servers required depends on the
capacity and level of redundancy required.

Network Routing Service

NRS for CS 1000 Release 5.0 software is offered in two versions: a SIP
Redirect Server NRS and a SIP Proxy NRS.

Nortel Communication Server 1000

Communication Server 1000M and Meridian 1 Large System Overview

NN43021-110

01.03

Standard

Release 5.0

18 February 2008