Fxo Emulation Example; E&M Emulation Example - Cisco WS C4224V 8FXS - 200Mbps Ethernet Switch Software Configuration Manual

Chapter 5 Configuring the Voice Interfaces

FXO Emulation Example

E&M Emulation Example
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To use FXO emulation to connect the T1-CAS port to the PSTN, you must have
Direct Inward Dialing (DID) enabled on incoming DS-0 groups. DID allows the
gateway or Cisco CallManager to identify the extension to which each call on an
incoming DS-0 group is directed. Because DID only works on incoming
connections, you must have separate DS-0 groups allocated for incoming and
outgoing calls. To configure the gateway to accept DID information, enter the
following command:
c4224(config-dial-peer)# direct-inward-dial
The first and last parts of the configuration are the same as for the FXO example.
However, you must configure your DS-0 groups for FXS by changing the
emulation type and enabling direct inward dialing (DID). Then, enter the
destination patterns required for routing voice calls to and from the PSTN. The
commands required to make these changes are shown below:
c4224(config-controller)# dso-group 0 timeslots 1 type fxo-loop-start
c4224(config)# dial-peer voice 1 pots
c4224c4224(config-dial-peer)# direct-inward-dial
c4224(config-dial-peer)# port 1/0:0
c4224(config-dial-peer)# destination-pattern 9.......
To connect the T1-CAS port to a trunk (tie) line using E&M emulation, you can
enable one of the following modes:
E&M immediate start
•
E&M wink start
•
E&M delay dial
•
The first and last parts of the configuration are the same as for the FXO example.
However, you must configure your DS-0 groups for E&M by changing the
emulation type. Then, enter the destination patterns required for routing voice
Catalyst 4224 Access Gateway Switch Software Configuration Guide
Configuring T1-CAS Analog Emulation (H.323)
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