Using Cisco Unified Communications Manager to Configure MGCP Gateway Support
Configuring MGCP Gateway Support
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Cisco VGD 1T3 Voice Gateway Software Configuration Guide
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Cisco Unified Communications Manager 3.1 (formerly known as Cisco CallManager 3.1) or higher
Multicast Music-on-Hold
The Music-on-Hold (MOH) feature enables you to subscribe to a music streaming service when you are
using a Cisco IOS MGCP voice gateway. Music streams from an MOH server to the voice interfaces of
on-net and off-net callers that have been placed on hold. Cisco Communications Manager supports the
capability to place callers on hold with music supplied from a streaming multicast MOH server. This
integrated multicast capability is implemented through the H.323 signaling in Cisco Communications
Manager.
By means of a preconfigured multicast address on the gateway, the gateway can “listen” for Real-Time
Transport Protocol (RTP) packets that are broadcast from a default router in the network and can relay
the packets to designated voice interfaces in the network. Whenever a called party places a calling party
on hold, Cisco Communications Manager requests the MOH server to stream RTP packets to the
“on-hold” interface through the preconfigured multicast address. In this way, RTP packets are relayed to
appropriately configured voice interfaces that have been placed on hold. When you configure a multicast
address on a gateway, the gateway sends an Internet Gateway Management Protocol (IGMP) “join”
message to the default router, indicating to the default router that the gateway is ready to receive RTP
multicast packets.
Multiple MOH servers can be present in the same network, but each server must have a different Class D
IP address, and the address must be configured in Cisco Communications Manager and the MGCP voice
gateways.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ccm-manager music-on-hold
4.
ccm-manager music-on-hold bind interface
5.
exit
DETAILED STEPS
Command or Action
Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
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Enter your password when prompted.
Step 2
configure
terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
ccm-manager music-on-hold
Example:
Router(config)# ccm-manager music-on-hold
Enables music-on-hold.
Содержание VGD-1T3
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Страница 120: ...Configuring Voice over IP Additional Resources 110 Cisco VGD 1T3 Voice Gateway Software Configuration Guide ...
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