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Question surround MRG ordering within a MRGL for UCCX G711 Only system.

     I have a CUBE (connected via SIP to ITSP) connected to CUCM via a SIP Trunk. I also have a UCCX G711-Only system.  My question surrounds how best to allocate media resource groups within a MRGL attached to either the SIP Trunk (Region FONT) and the UCCX Trigger/Route-Points (region G711_ONLY).  I have separate media resource groups configured for G729-MTPs, G711-MTPs and X-Coders.  I’ve looked at the SRND’s and did not come across a definitive statement surrounding how best to allocate/order these.  The regions between the UCCX devices (G711_ONLY) and everything else including FONT allows G711.

         What is the best way to list the groups within the MRGL?  Should G729-MTP’s always be first? Should G711-MTP’s be first? From what I’ve read X-Coders should always come after MTPs.  I have had issues with MTP allocation failed messages along with DTMF failing and would like to re-do the configuration but have not really found a definitive guide outlining what MRG order there should be on the SIP Trunk, on CTI Ports, Route-Point/triggers etc.  Does anyone have any input to best practices or a link to a guide?



  • IP Telephony
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Re: Question surround MRG ordering within a MRGL for UCCX G711 O

I dont think the order really matters as long as you have all the correct stuff listed the system will use as needed

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Voice CCIE #37771