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Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Chapter 5 Configuring the Voice Interfaces
MGCP Configuration
For example, the following command string configures voice port 0 in voice interface card 1 with
MGCP:
Gateway(config)# dial-peer voice 1 pots
Gateway(config-dial-peer)# application MGCPAPP
Gateway(config-dial-peer)# port 1/1/0
Configuring T1-CAS E&M Emulation
You can use MGCP with the following emulation types:
• E&M Wink Start
• E&M Delay Start
To configure T1-CAS E&M emulation with MGCP using Cisco CallManager Administrator, perform
the following steps to configure the route pattern and dial plan:
Step 1 Identify the T1 port number and enter the information provided by your local carrier.
Identify the port number and then enter the configuration information provided by your local carrier, as
in the following example:
Gateway(config)# controller T1 1/port#
Gateway(config-controller)# framing esf
Gateway(config-controller)# clock source internal
Gateway(config-controller)# linecode b8zs
Step 2 Assign time slots to the DS-0 group and identify the emulation type.
You can define each DS-0 group to use FXS, FXO, or E&M, using the following command:
Gateway(config-controller)# ds0-group group<groupnumber> timeslots <timeslotnumber> type
emulationtype
Replace emulationtype with e&m-wink-start or e&m-delay-dial.
Replace <groupnumber> with the DS-0 group number and replace <timeslotnumber> with the number
of DS-0 time slots to allocate to the group. For example, the following command configures the first
DS-0 group with one time slot using FXS emulation in loop-start mode:
Gateway(config-controller)# ds0-group 0 timeslots 1 type fxs-loop-start
As mentioned earlier, you can configure DS-0 hunt groups by assigning a range of time slots to a DS-0
group and then configuring multiple voice peers with the same destination pattern pointing to multiple
voice ports.
For example, the following command assigns 12 time slots to DS-0 group 1:
Gateway(config-controller)# ds0-group 1 timeslots 1-12 type fxs-loop-start
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