Supported Headers Clause Samples

Supported Headers. The following sections specify the default requirement for supporting SIP headers for all MSF compliant devices that support SIP, unless otherwise stated in the detailed SIP IAs. The following is an example INVITE showing a variety of headers. There are other headers not shown in the example INVITE request. INVITE SIP:▇▇▇▇▇▇▇▇▇▇@172.80.2.100:5060 SIP/2.0 Via: SIP/2.0/UDP 172.17.2.29:5060 Max-Forwards: 70 From: IP30 Phone 1 <SIP:▇▇▇▇▇▇▇▇▇▇@172.17.2.29>;tag=949D.80A7 To: <SIP:▇▇▇▇▇▇▇▇▇▇@172.20.2.31> Call-ID: ▇▇▇▇.▇▇▇▇.A152.3C44.949D.80A7@172.17.2.29 CSeq: 21479 INVITE Content-Length: 148 Content-Type: application/sdp Contact: SIP:▇▇▇▇▇▇▇▇▇▇@172.17.2.29 Session-Expires: 120 Supported: timer, 100rel Resource-Priority: dsn.flash INVITE SIP:▇▇▇▇▇▇▇▇▇▇@[3ffe:302:feed:ffff::d49d:cdce]:5060 SIP/2.0 Via: SIP/2.0/UDP [3ffe:302:feed:beef:208:74ff:fee1:d3ca]:5060 Max-Forwards: 70 From: IP30 Phone 1 <SIP:▇▇▇▇▇▇▇▇▇▇@[3ffe:302:feed:ffff::d49d:cdce]>;tag=949D.80A7 To: <SIP:▇▇▇▇▇▇▇▇▇▇@[3ffe:302:feed:ffff::d49d:cdce]> Call-ID: ▇▇▇▇.▇▇▇▇.A152.3C44.949D.80A7@[3ffe:302:feed:beef:208:74ff:fee1:d3ca] CSeq: 21479 INVITE Content-Length: 148 Content-Type: application/sdp Contact: SIP:▇▇▇▇▇▇▇▇▇▇@[3ffe:302:feed:beef:208:74ff:fee1:d3ca] Session-Expires: 120 Supported: timer, 100rel Resource-Priority: dsn.flash 4.3.1 Request Line 4.3.2 Via