Cisco Cisco IOS Software Release 12.2(11)T

This document describes fine-grain address segmentation in dial peers for Cisco universal gateways. It 
includes the following sections:

This feature enables fine-grain address segmentation for dial plans in universal gateways that use 
universal ports to handle simultaneous voice and modem calls.

Say that you want to create a dial plan such as the following, in which a wildcard is used for voice calls, 
but in addition there are a few modem numbers:

4085551212 modem

4085551213 modem

408555* voice

When a call comes into the gateway, the voice dial peers are searched first for a match. If a match is 
found, the call is treated as a voice call. If a match is not found, the call is treated as a modem call.

However, the ordering of the search—first voice then modem—creates a problem. In this example, any 
call with the prefix 408555 is assumed to be voice. There is no way to signify that just a subset of that 
address range—calls to other than 4085551212 or 4085551213—should be treated as voice.

12.2(2)XB

This feature was introduced on the Cisco AS5350, Cisco AS5400, 
Cisco AS5850.

12.2(11)T

This feature was implemented in Cisco IOS Release 12.2(11)T.