I have a uc520 configured with Skype Sip trunk.
Incoming calls on the trunk are forwarded to the auto attendant.
The auto attendant answer and plays the message Press 1, 2, 3 etc.
However when the calller enters the digits the auto attendant keeps playing the recording.
I think this issue is something we have seen in CCA when the access code for outbound calls is the same as the leading DID digit that we are looking to fix in a future CCA release. Options are:
1. Use a different access code which may not work for you (such as say 8)
2. Add below CLI and seeif this fixes your issue
dial-peer voice 1003 voip
dtmf-relay sip-notify rtp-nte