g-Vector icid-value=914052945 ;icid-generated-at=[::01:34:3F:34] Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Contact: k<sip:[::0000:1111:2222:33331:2343;comp=sigcomp> SIP: Understanding the Session Initiation Protocol Supported: 100rel Require: precondition Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Security-Verify: ipsec-3gpp; q=0.1; alg=hmac-sha-1-96; spi=34341 :port1=4323 Content-Type: application/sdp Content-Length: 159 O=- 2890844526 2890844526 IN IP4 [::0000:1111:2222:33331 s=Phone Call t=0 0 C=IN IP6 (0000:1111:2222:3333] m=audio 49170 RTP/AVP 97 96 b=AS:25.4 a=curr:gos local none a=curr:qos remote none a=des:gos mandatory local sendrecv a=des:gos none remote sendrecv a=rtpmap:9 97 AMR a=fmtp:97 mode-set=0,2,5,7 ;maxframes=2 a=rtpmap:96 telephone-event SIP/2.0 100 Trying Via: SIP/2.0/UDP pcscf.visitednet.com:branch=z9hG4bK7866 Via: SIP/2.0/UDP ::0000:1111:2222:33331:2343;comp=sigcomp branch=z9hG4bKmp17a43 To: tel:+1-314-555-1234> From: sip:mobile1@homenet.com>;tag=34199357834 Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Content-Length: 0 INVITE sip:mobile2@homenet.com SIP/2.0 Via: SIP/2.0/UDP scscf.homenet.com:branch=z9hG4bk34fd2 Via: SIP/2.0/UDP bcscf.visitednet.com;branch=z9hG4bK7866 Via: SIP/2.0/UDP [::0000:1111:2222:33331:2343;comp=sigcomp branch=z9hG4bKmp17a43 Max-Forwards: 68 Record-Route: <scscf.homenet.com>, <sip:pcscf.visitednet.com;lr> To: tel:+1-314-555-1234> From: sip:mobile1@homenet.com>;tag=34199357834 P-Asserted-Identity:"Alice" <sip:mobile1@homnet.com> itel:+1-972-555-4321> P-Access-Network-Info: - Privacy: none P-Charging-Vector Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Contact: <sip:(::0000:1111:2222:33331:2343;comp=sigcomp> Supported: 100rel Require: precondition Call Flow Examples Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Security-Verify: ipsec-3gpp; q=0.1; alg=hmac-sha-1-96; spi=34341 ;port1=4323 Content-Type: application/sdp Content-Length: 159 O= 2890844526 2890844526 IN IP4 ::0000:1111:2222:3333] s=Phone Call C=IN I