Page 34 of 910 Description

553-3001-365 Standard 4.00 August 2005

Figure 1

System architecture

553-AAA0400

BCM

LAN

CS 1000

CS 1000M

WAN

Call Server Signaling Server
Media Gateway and
Media Gateway Expansion
Media streams routed
directly using IP
IP
Phones
Web Browser
for Element Manager
Requires BCM
Release 3.0 or higher

LAN

Signaling Server
IP Trunk 3.0
or later

Branch Media Gateway

Signaling Server
(Optionally Redundant)
-Terminal Proxy Server
-H.323 proxy
-Primary Gatekeeper
-Element Manager Web Server
Signaling Server
(Optionally Redundant)
-Terminal Proxy Server
-H.323 proxy
-Alternate Gatekeeper
-Element Manager Web Server
IP Line