Hi, I went through the systems guide and could find out the following info for RSVP codec allocation for multidirectional call, Can you please validate my understanding.
Special Configuration With RSVP In an RSVP session, special configuration applies if all the following conditions exist: One endpoint device, such as Cisco IP Interactive Voice Response (IP IVR), was configured to support only the G.711 codec. RSVP was configured for the call. The interregion codec specifies G.729 between the calling RSVP agent and the called RSVP agent. When the call is made, to achieve successful allocation and reservation of RSVP agent resources and bandwidth, the administrator must configure the media termination point (MTP)/RSVP agent with the G.729 codec in addition to the pass-through codec. This configuration allows insertion of a transcoder between the RSVP agent of the called side and the called device at the time of media connection. When codecs match, codec pass-through takes place; if codecs do not match, the call cannot continue without a transcoder. If configuration of the G.729 codec in the agent does not take place, the call will fail because Cisco Unified Communications Manager will not invoke a transcoder that is needed for the RSVP call. The situation arises if either of the following conditions apply: the interregion codec gets used between calling and called agents or between two endpoints that specify G.729. Two options exist to enable successful routing of this call: Use RSVP agent for IVR as a transcoder. In this case, the interregion codec between the transcoder/RSVP agent and IVR needs to specify the G.711 codec. Use software MTP as RSVP Agents and insert a transcoder between IVR and the RSVP agent for IVR. In this case, ensure the software MTP is configured with the G.729 codec in addition to the pass-through codec. Keep in mind that the RSVP agent that has transcoding capability cannot perform G.729-to-G.729 transcoding. If you use a transcoder as an RSVP agent, you either must use the pass-through codec or configure the transcoder, so one of the codecs that is used on both sides of the transcoder specifies G.711. Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com
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