Am having some problems with users not being able to leave voicemail messages on a CUE when calls are made to the system from externally. The end user is played a prompt to leave a voicemail but the message is not recording and no notification is given. Internally - this works fine.
The calls inbound from externally come in via a SIP provider. I thought it was a codec problem so configured transcoders but that has not resolved the issue.
Any help - gratefully received.