Cisco CP-7911G-CH1 Administration Guide - Page 297
Prerequisites, Enabling Multicast MOH on the Cisco Unified SRST Gateway, SUMMARY STEPS
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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 Prerequisites • The Cisco Unified SRST gateways must run Cisco IOS Release 12.2(15)ZJ2 or a later release. • The flash memory in each of the Cisco Unified SRST gateways must have an MOH audio file. The MOH file can be in .wav or .au file format, but must contain 8-bit 8-kHz data, such as an a-law or mu-law data format. A known working MOH audio file (music-on-hold.au) is included in the program .zip files that can be downloaded from http://www.cisco.com/cgi-bin/tablebuild.pl/ip-key. Or the music-on-hold.au file can be downloaded from http://www.cisco.com/cgi-bin/tablebuild.pl/ip-iostsp and copied to the flash memory on your Cisco Unified SRST router. • For Cisco Unified CM versions 4.3 or earlier versions running on Windows, download MOH files by copying one of the MOH files, such as SampleAudioSource.ULAW.wav, from C:\Program Files\Cisco\MOH on Cisco Unified CM. Note During the copying process, four files are added to each router's flash automatically. One of the files must use a mu-law format as indicated by the extension.ULAW.wav. • You must configure a loopback interface and include its IP addresses in the Cisco Unified SRST multicast MOH configuration. This configuration allows multicast MOH to be heard on POTS ports on the gateway. The loopback interface does not have to bind to either H.323 or MGCP. • Configure at least one ephone and directory number (DN), even if the gateway is not used for Cisco Unified SRST. Cisco Unified SRST multicast MOH streaming never starts without an ephone and directory number. Enabling Multicast MOH on the Cisco Unified SRST Gateway No multicast MOH routing configuration is required for Cisco Unified SRST gateways because each Cisco Unified SRST gateway is configured to act as a host running an application that streams multicast MOH packets from the network. The multicast moh command declares the Cisco Unified Communications Manager multicast MOH address and port number and allows Cisco Unified SRST gateways to route MOH from flash memory to up to four IP addresses. If no route IP addresses are configured, the flash MOH is sent through the IP address configured in the Cisco Unified SRST ip source-address command. SUMMARY STEPS 1. ccm-manager music-on-hold 2. interface loopback number 3. ip address ip-address mask 4. exit 5. interface fastethernet slot/port 6. ip address ip-address mask 7. exit 8. call-manager-fallback 9. ip source-address ip-address [port port] 10. max-ephones max-phones OL-13143-04 Cisco Unified SCCP and SIP SRST System Administrator Guide 297