555-1234>;tag=g41334 From: <sip:mobile1@homenet.com>;tag=34199357834 P-Access-Network-Info: Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 ACK Contact: <sip:[::0000:1111:2222:33331:2343;comp=sigcomp> Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Content-Length: 0 Call Flow Examples ACK sip:[::0000:aaaa:bbbb:cccc]:8767;comp=sigcompSIP/2.0 Via: SIP/2.0/UDP pcscf.visitednet.combranch=z9hG4bknv3 Via: SIP/2.0/UDP [::0000:1111:2222:33331:2343;comp=sigcomp branch=z9hG4bK54343 Route: <scscf.homenet.com;lr> <sip:pscsf.homenet.com;lr> Max-Forwards: 69 To: el:+1-314-555-1234>;tag=g41334 From: k<sip:mobile1@homenet.com>;tag=3419935 P-Access-Network-Info: 394893842917847375 Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 ACK Contact: <sip:[::0000:1111:2222:33331:2343;comp=sigcomp> Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Content-Length: 0 ACK sip:[::0000:aaaa:bbbb:cccc]:8767;comp=sigcompSIP/2.0 Via: SIP/2.0/UDP scscf.homenet.com;branch=z9hG4bk6fgn2 Via: SIP/2.0/UDP pcscf.visitednet.com;branch=z9hG4bknv3 Via: SIP/2.0/UDP :0000:1111:2222:33331:2343;comp=sigcomp :branch=z9hG4bK54343 Route: k<sip:pscsf.homenet.com;lr> Max-Forwards: 68 To: tel:+1-314-555-1234>;tag=g41334 From: ip:mobile1@homenet.com>;tag=34199357834 P-Access-Network-Info: Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 ACK Contact: <sip:[::0000:1111:2222:33331:2343;comp=sigcomp> Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Content-Length: 0 ACK sip:[::0000:aaaa:bbbb:cccc]:8767;comp=sigcompSIP/2.0 Via: SIP/2.0/UDP pcscf.homenet.com;branch=z9hG4bk45hmk Via: SIP/2.0/UDP scscf.homenet.com;branch=z9hG4bk6fgn2 Via: SIP/2.0/UDP pcscf.visitednet.com;branch=z9hG4bKnv3 Via: SIP/2.0/UDP [::0000:1111:2222:33331:2343;comp=sigcomp. :branch=z9hG4bK54343 Max-Forwards: 67 To: tel:+1-314-555-1234>;tag=g41334 From: <sip:mobile1@homenet.com>;tag=34199357834 P-Access-Network-Info: Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 ACK Contact: <sip:[::0000:1111:2222:33331:2343;comp=sigcomp> Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE,