Add Messaging - 3Com 3C10402B Administrator's Manual

242 C 10: SIP-M
HAPTER

Add Messaging

O
ODE PERATIONS
Enables NBX Messaging.
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The system now reverts to 3Com Call Control mode. SIP-only devices no
longer function, and the database has changed.
A system running in SIP mode must have an external messaging system.
3Com recommends that you use the 3Com IP Messaging Module, which
has been enhanced to support system operations.
After you configure IP Messaging on the system, you must configure the
services — Auto Attendants, Music on Hold, and ACD announcements.
For information about how to install and configure services on the 3Com
IP Messaging Module, see the IP Messaging Module Installation Guide,
which is available through the NBX NetSet utility (click Downloads >
Documentation). Other IP Messaging documentation for administrators
and end users is available on the NBX Resource Pack.
To add IP Messaging to a system:
1 Log in to the NBX NetSet utility using the administrator login ID and
password.
2 Click SIP Applications > IP Messaging.
3 Type the extension used by the system for IP Messaging. This extension
must be an unused extension on the system in the range of external
extensions, 6000-7999 in a 4-digit dial plan. The system adds the
extension to the *0003 extension list in the dial plan.
Every physical and virtual device on a system must have an extension. The
IP Messaging extension identifies the IP Messaging Module, a trusted SIP
interface. To verify the dial plan change, click Dial Plan > Extension List,
and then click extension list *0003.
4 Type a description for the IP Messaging Module.
5 Type the eth0 IP address for the IP Messaging Module. NBX
configurations do not use the eth1 interface.
6 Type a port number for IP Messaging. A SIP endpoint is identified by the
IP and port combination.
The default port, 5060, is listed in the Internet Assigned Number
Authority port list as a Registered Port for SIP.
7 Type the maximum number of simultaneous sessions. This value is less
than or equal to the number of available IPM licenses. Each session