Hello, I am having an issue with calls inbound to my UC 560.
The SIP provider suggests is may be a NAT setting.
They also suggest to "suppress" the first set (c=IN) in the code (below) since it is asking for a private IP:
o=CiscoSystemsSIP-GW-UserAgent 5653 7153 IN IP4 22.214.171.124
i=(o=IN IP4 10.0.1.54)
c=IN IP4 10.0.1.54
m=audio 54472 RTP/AVP 0 101
c=IN IP4 126.96.36.199
Please advise. Thank you.