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[reSIProcate-users] Does "transport=TCP" in Contact Header is case-sensitive?


Hi, I noticed that the "TCP" is upper-case in the "Contact" header once TCP transport using, in RFC standard does it case-sensitive ?

REGISTER sip:sip.example.com SIP/2.0
Via: SIP/2.0/TCP 192.168.1.168:7545;branch=z9hG4bK-d8754z-882a07326842fc18-1---d8754z-;rport
Max-Forwards: 70
Contact: <sip:137244491822@xxxxxxxxxxxxx:7545;rinstance=405113f40e6faed4;transport=TCP>