REGISTER sip:obihai.sip.google.com SIP/2.0 Via: SIP/2.0/TLS 85.142.148.xx:5061;rport;branch=z9hG4bKPj74e9fe7e-81e7-4809-827a-78796b210c81;alias From: ;tag=cc7a918a-e334-40e8-a1f5-4c6773b98a17 To: Call-ID: f888e7ef-4967-4eac-9c51-09c5bf650eef CSeq: 53374 REGISTER Authorization: Bearer token="...", username="gv113516753058xxxxx", realm="obihai.sip.google.com" Contact: Expires: 180 Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, MESSAGE, REFER Supported: path, outbound Max-Forwards: 70 User-Agent: ruVoIP.net PBX Content-Length: 0 SIP/2.0 423 Interval Too Brief Via: SIP/2.0/TLS 85.142.148.xx:5061;rport=50535;branch=z9hG4bKPj74e9fe7e-81e7-4809-827a-78796b210c81;received=85.142.148.xx;alias To: ;tag=5111975d From: ;tag=cc7a918a-e334-40e8-a1f5-4c6773b98a17 Call-ID: f888e7ef-4967-4eac-9c51-09c5bf650eef CSeq: 53374 REGISTER Min-Expires: 2400 Content-Length: 0 REGISTER sip:obihai.sip.google.com SIP/2.0 Via: SIP/2.0/TLS 85.142.148.xx:5061;rport;branch=z9hG4bKPjc23a726d-7e87-4487-b71e-ca53dd093dcc;alias From: ;tag=9a879975-647b-41be-ab87-60a7a1430601 To: Call-ID: f888e7ef-4967-4eac-9c51-09c5bf650eef CSeq: 53375 REGISTER Authorization: Bearer token="...", username="gv113516753058xxxxx", realm="obihai.sip.google.com" Contact: Expires: 2400 Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, MESSAGE, REFER Max-Forwards: 70 User-Agent: ruVoIP.net PBX Content-Length: 0 SIP/2.0 421 Extension Required Via: SIP/2.0/TLS 85.142.148.xx:5061;rport=57385;branch=z9hG4bKPjc23a726d-7e87-4487-b71e-ca53dd093dcc;received=85.142.148.xx;alias Require: path To: ;tag=257f392e From: ;tag=9a879975-647b-41be-ab87-60a7a1430601 Call-ID: f888e7ef-4967-4eac-9c51-09c5bf650eef CSeq: 53375 REGISTER Content-Length: 0