Multicast Moh Transmission; Moh From A Live Feed - Cisco CP-7911G-CH1 System Administrator Manual

Information About Using Cisco Unified SRST Gateways as a Multicast MOH Resource
Figure 3 MOH Sources for Cisco Unified SRST and Other Unified SRST IP Phones Using MOH
239.1.1.1 port 16384
239.1.1.1 port 16386
To enable MOH audio packet transmission through two paths, the Cisco Unified CM MOH server must
be configured with either one IP address and two different port numbers or one port address and two
different IP multicast addresses so that one set of branches can use Cisco Unified SRST multicast MOH
and the other can use Cisco Unified CM multicast MOH.

Multicast MOH Transmission

If Cisco Unified SRST multicast MOH is supported by all branches in a system, such as in
Cisco Unified Communications Manager must be configured to keep all multicast MOH audio packets
from reaching the WAN. When there is a mix of Cisco Unified SRST branches, as shown in
one set of Cisco Unified Communications Manager MOH audio files must reach the WAN and another
set must not. Audio packets from the central Cisco Unified Communications Manager must cross the
WAN to reach branches running Cisco Unified Communications Manager. For branches running
Cisco Unified SRST, the packets must not reach the WAN. For more information about Multicast MOH,
see the

MOH from a Live Feed

MOH live feed provides live feed MOH streams from an audio device connected to an E&M or FXO port
to Cisco IP phones in SRST mode. Music from a live feed is from a fixed source and is continuously fed
into the MOH playout buffer instead of being read from a flash file.
Cisco Unified SRST is enhanced with the moh-live command. The moh-live command provides live
feed MOH streams from an audio device connected to an E&M or FXO port to Cisco IP phones in SRST
mode. Live feed MOH can also be multicast to Cisco IP phones. For more information about
Cisco Unified SRST MOH live feed, see the
Feed" section on page
Cisco Unified SCCP and SIP SRST System Administrator Guide
286
Appendix B: Integrating Cisco Unified Communications Manager and Cisco Unified SRST to Use Cisco Unified SRST
WAN
239.1.1.1 port 16386
"Configuring Cisco Unified SRST for Multicast MOH from an Audio File" section on page
306.
Branch 1 with Cisco Unified SRST using G.711
239.1.1.1 port 16384
V
Branch 2 with Cisco Unified SRST using G.711
239.1.1.1 port 16384
V
Branch 3 without Cisco Unified SRST using G.729
V
"Configuring Cisco Unified SRST for MOH from a Live
Figure 1,
Figure 3,
296.
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