I have got the below error with 3CX when receiving an incoming call, on ringing state.
Error parsing SIP message: Regex failed to match To/From.
Please open a GitHub Issue at https://www.github.com/tayler6000/pyVoIP and include the following:
data='"Asik Kafoor"sip:7002@127.0.0.1;tag=bff3ee63' type(match)=<class 'NoneType'>