Cisco CP-7911G-CH1 Administration Guide - Page 292
Audio Sources on this MOH Server, Music On Hold Server
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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 Use this procedure to enable multicast and configure port numbers and IP addresses. Step 1 Step 2 Step 3 Enable multicast MOH for Cisco Unified CM. a. Choose Service > Media Resource > Music On Hold Server. b. The MOH Server Configuration window appears. c. Call up an existing MOH server by clicking Find and double-clicking the required MOH server. d. Whether you are updating an existing MOH server or creating a new one, click Enable Multicast Audio Sources on this MOH Server. Set the base IP address and port number. In the MOH Server Configuration window, enter an IP address in the Base Multicast IP Address field and enter a port number in the Base Multicast Port Number field. Ensure that the IP address and port number use the required audio source and codec. See Table 2. Select whether Cisco Unified CM increments port numbers or IP addresses. In the MOH Server Configuration window, in the Increment Multicast on field, choose Port Number if you want port numbers to be incremented and the IP address to remain unchanged. Choose IP Address if you want IP addresses to be incremented and the port number to remain unchanged. • If all of your branches run Cisco Unified SRST and thus use G.711 for MOH, use either setting because incrementation does not take place and a selection does not matter. • If your system configuration includes routers that do not run Cisco Unified SRST and use a different codec, select an incrementation method. Note If your branches include routers that do not run Cisco Unified SRST and do use G.711, configure separate audio sources: one for the routers that run Cisco Unified SRST and one for the routers that do not. Step 4 Step 5 Enter a maximum number of hops. In the MOH Server Configuration window, next to the Audio Source Name field, enter 1 in the Max Hops field if all of your branches run Cisco Unified SRST. If your system configuration includes routers that do not run Cisco Unified SRST, enter 16 in the Max Hops field. Use Cisco IOS commands to stop Cisco Unified CM signals from crossing the WAN and reaching Cisco Unified SRST gateways. If all of your branches run Cisco Unified SRST, skip this step. If your system configuration includes routers that do not run Cisco Unified SRST and use a different codec, enter the following Cisco IOS commands starting from global configuration mode on the central site router: a. interface {serial | fastethernet} slot/port Enters interface configuration mode, where slot is the slot number and port is the port number. b. ip multicast boundary access-list-number Configures an administratively scoped boundary, where access-list-number is a number from 1 to 99 that identifies an access list that controls the range of group addresses affected by the boundary. c. exit Exits interface configuration mode. 292 Cisco Unified SCCP and SIP SRST System Administrator Guide OL-13143-04