CUCM media resources

[Bekzod Fakhriddinov]

Hi guys. 

If I have on sip trunk Media resource group list (MRGL) “A” and Device Pool “NY-Phones-DP” with MRGL “B”.  So,  Which MRGL  will be used  by SIP trunk A or B ?

Media resource group has  (MOH, MTP, conf bridge and xcode), and as I remember they can’t substitute each other , right ?

Thank you

[Jaime Valencia · Accepted solution]

MRGL defined at device level have precedence over MRGL at DP level

[Bekzod Fakhriddinov]

that's meaning MRGL on sip trunk will have precedence over Device Pool  , correct ?

what about this : Media resource group has  (MOH, MTP, conf bridge and xcode), and as I remember they can’t substitute each other , right ?

[Jaime Valencia · Accepted solution]

An xcoder can also work as an MTP, but that's the only "equivalency" between media resources.