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Using Dummy SIP Trunk to get REFER based transfers workingIn CUCM Versions below 9.X, we have a limitation of SIP Route Pattern not allowing us to point to a SIP Trunk that is already associated with a route group. This creates problems in call scena...
Hi,Jaime is right.Please use isdn bearer capability as speech . You can configure this under the interface serial or voice port configuration.Sent from Cisco Technical Support iPad App