Transcoding for CallManager Express
CME supports DSPs for transcoding. It does not support DSP-based conference bridges at this time. The configuration is similar to registering DSPs to a CallManager. The IP address used in the sccp ccm command is the IP address of the CME service. This should match the ip source-address specified under telephony-service.
After you have completed Step 6 for C549 DSPs or Step 8 for C5510 DSPs, the following steps register the transcoders to CME:
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Step 1. |
Enter telephony-service configuration mode.
GW_2811(config)#telephony-service |
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Step 2. |
Set the maximum number of DSP farms that can be registered to CME.
GW_2811(config-telephony)#sdspfarm units number A CME can support up to five transcoder sessions. These can be locally defined transcoders on the CME gateway or DSPs that are defined on other gateways.
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Step 3. |
Specify the maximum number of transcoding sessions supported across all registered transcoders.
GW_2811(config-telephony)#sdspfarm transcode sessions number This is the total number of sessions provided by all registered transcoders. Valid entries are 1 through 128.
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Step 4. |
Specify the name of the DSP farm.
GW_2811(config-telephony)#sdspfarm tag number device-name The device name follows the same rules as CallManager registrations. For C549 DSPs, the device-name is "MTP" plus the MAC address of the SCCP local interface. For C5510 DSPs, the device-name is specified when you associate the transcoder profile to the ccm group.
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Case Study Add DSP Resources to the Miami Gateway
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