sip protocol via header

https://andrewjprokop.wordpress.com/2014/03/06/understanding-the-sip-via-header/

https://nickvsnetworking.com/sip-via-header/

https://www.tutorialspoint.com/session_initiation_protocol/request_and_response_header_fields.htm

你可能感兴趣的:(sip)