Specifications

Basic Configuration 3-41
Configuring T1 CAS for VoIP
Configuring T1 CAS for VoIP
This section describes how to configure T1 Channel Associated Signaling (CAS) and E1 R2
signaling with the Voice over IP (VoIP).
Note Cisco IOS Release 12.0(3)T and later releases require VCWare level 2.5 code.
Configure
This configuration is an example of how to configure the voice ports as a cas-group for the
channelized T1 lines.
Table 3-23 Configuring Service Provider T1 CAS
Step Command Purpose
1
5300> enable
Password: <password>
5300#
Enter enable mode (also called
privileged EXEC mode).
Enter the password.
You have entered enable mode when the
prompt changes to
5300#.
2
5300# config term
Enter configuration commands, one per line. End
with CNTL/Z.
5300(config)#
Enter global configuration mode. You
have entered global configuration mode
when the 5300# prompt changes to
5300(config)#.
3
5300(config)# controller t1 0
Enter controller configuration mode to
configure your controller port. The
controller ports are labeled 0 through 3
on the Quad T1/PRI and E1/PRI cards.
4
5300(config-controller)# cas-group 1 timeslots
1-24 type e&m-fgb dtmf dnis
Configure all channels for E&M, FXS,
and SAS analog signaling. Enter 1-24 for
T1. If E1, enter 1-31.
Signaling types include e&m-fgb,
e&m-fgd, e&m-immediate-start,
fxs-ground-start, fxs-loop-start,
sas-ground-start, and sas-loop-start.
You must use the same type of signaling
that your central office uses.
For E1 using the Anadigicom converter,
use cas e&m-fgb signaling.
5
5300(config-controller)# controller t1 1
5300(config-controller)# cas-group 2 timeslots
1-24 type e&m-fgb
Repeat steps 3 and 4 to configure each
additional controller (there are 4 in the
Quad cards and 8 in the Octal cards). In
this example, note that the controller
number is 1, instead of 0. The clock
source is secondary, instead of primary.
The cas-group is 2, instead of 1.
6
5300(config-controller)# Ctrl-Z
Return to enable mode.