Cisco CP-7911G-CH1 Administration Guide - Page 289
Configuring the MOH Audio Source to Enable Multicasting, Maintain and Operate Guides
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Appendix B: Integrating Cisco Unified Communications Manager and Cisco Unified SRST to Use Cisco Unified SRST How to Use Cisco Unified SRST Gateways as a Multicast MOH Resource Regions specify the codecs that are used for audio and video calls within a region and between existing regions. For information about regions, see the "Region Configuration" section in the Cisco Unified Communications Manager Administration Guide. From the Cisco Unified Communications Manager documentation directory, click Maintain and Operate Guides and select the required Cisco Unified Communications Manager version to locate the administration guide for your version. Figure 4 Unified Communications Manager Screens for Configuring Multicast MOH Configure MOH Server Music On Hold (MOH) Audio Source Configuration Screen Music On Hold (MOH) Server Configuration Screen Add Server Media Resource Group Configuration Screen Add MRG Media Resource Group Configuration Screen Phone Configuration Screen 146319 Gateway Configuration Screen Configuring the MOH Audio Source to Enable Multicasting The MOH audio source is a file from which Cisco Unified CM transmits RTP packets. You can create an audio file or use the default audio file. For Cisco Unified SRST multicast MOH, only one audio source can be used, even if, for example, one out of 500 sites uses Cisco Unified SRST multicast MOH. In addition, all Cisco Unified Communications Manager systems must use the same audio source for user and network MOH because Cisco Unified SRST multicast MOH can stream audio only to a single multicast IP address and port. For Cisco Unified SRST multicast MOH, the Cisco Unified Communications Manager audio source file must be configured for G.711 bandwidth. OL-13143-04 Cisco Unified SCCP and SIP SRST System Administrator Guide 289
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