I have about 15 remote sites and 2 data centers. The data-centers both have CUBES that connect to the PSTN via provider SIP trunks. Each remote site also has an SRST. I have always assigned MTP via the MRG list for each site preferring the local SRST first then the software MTP that comes from the CUCM pub/sub as a secondary option in the MRG list. I was recently told this wsa incorrect and I should instead have the pub/sub software MTP resources listed first. Can someone please let me know how this should be?
MRG List: Site 1 local (CFB/MTP/XCOE) from the SRST
Or should it be
MRG List: Software CFB/MTP from the CUCM PUB/SUB first?
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Thank you for your help. Where would I find the option for early offer best choice? I don't see this under trunk configuration or the SIP profile.