3Com VCX V7000, Installation And Maintenance Manual

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22 C
HAPTER
1: P
RE
-I
NSTALLATION
Unified Messaging
Configuration
You can add a Unified Messaging System (UMS) to the 200-user or
500-user configurations to provide telephone users with the ability to
handle voicemail, fax, and e-mail messages in a unified way.
A Unified Messaging System configured with a mirrored pair of servers
supports:
■
Up to 1,500 telephone users
■
Up to 125 simultaneous voicemail accesses at busy times
Each server in the mirrored pair of servers runs this software:
■
VCX Linux Operating System
■
V7300 IP Telephony Applications Suite
Network Diagrams
This section describes possible network connections for a VCX system.
Single Server Pair If you are running all VCX software components on a single pair of
servers, use this diagram to connect the servers to a single network.
Figure 1 One Network — Single Server Pair
UMS Intelligent Mirroring and the Back End Servers use the eth0 network
interface card. The VCX Call Processor and the SIP Downloader use eth1.
Network Connections
Primary Server
Secondary Server
eth0
eth1 eth0
eth1