Cisco CP-7911G-CH1 System Administrator Manual page 285

Appendix B: Integrating Cisco Unified Communications Manager and Cisco Unified SRST to Use Cisco Unified SRST
Figure 2 IP Address and Port Usage for G.711 and G.729 Configuration
WAN
Branch 2 places Branch 1 on hold (G.711 is used).
WAN
WAN
Figure 1
a case in which some gateways are configured with Cisco Unified SRST and other gateways are not.
When the central site and Branch 3 phone users are put on hold by other IP phones in the Cisco Unified
CM system, MOH is originated by Cisco Unified CM. When Branch 1 and Branch 2 phone users are put
on hold by other phone users in the Cisco Unified CM system, MOH is originated by the Cisco Unified
SRST gateways.
OL-13143-04
Branch 1 calls Branch 2 (G.729 is used).
10.1.1.1 port 1000
Branch 1
Branch 2
Branch 2 takes Branch 1 off hold (G.729 is used).
10.1.1.1 port 1000
and Figure 2 show all branches using Cisco Unified SRST multicasting MOH.
Information About Using Cisco Unified SRST Gateways as a Multicast MOH Resource
IP
V
IP
V
239.1.1.1 port 16384
V
IP
V
IP
V
IP
V
Cisco Unified SCCP and SIP SRST System Administrator Guide
Branch 1
Branch 2
IP
Branch 1
Branch 2
Figure 3 shows
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