ranch=z9hG4bkghf Via: SIP/2.0/UDP [::0000:1111:2222:33331:2343;comp=sigcomp branch=z9hG4bkdfewqh Record-Route: <sip:pscsf.homenet.com;lr> <scscf.homenet.com;lr> <sip:pcscf.visitednet.com;lr> To: <tel:+1-314-555-1234>;tag=g41334 From: <sip:mobile1@homenet.com>;tag=34199357834 Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Contact: sip:[::0000:aaaa:bbbb:cccc]:8767;comp=sigcomp> Require: 100rel Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Content-Length: 0 SIP/2.0 180 Ringing Via: SIP/2.0/UDP pcscf.visitednet.com;branch=z9hG4bkghf Via: SIP/2.0/UDP ::0000:1111:2222:33331:2343;comp=sigcomp branch=z9hG4bkdfewqh Record-Route: <sip:pscsf.homenet.com;lr>, <scscf.homenet.com;lr>, Call Flow Examples <sip:pcscf.visitednet.com;lr> To: <tel:+1-314-555-1234>;tag=g41334 From: ksip:mobile1@homenet.com>;tag=34199357834 Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Contact: sip:[::0000:aaaa:bbbb:cccc]:8767;comp=sigcomp> Require: 100rel Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Content-Length: 0 SIP/2.0 180 Ringing Via: SIP/2.0/UDP [::0000:1111:2222:33331:2343;comp=sigcomp bbranch=z9hG4bkdfewqh Record-Route: <sip:pscsf.homenet.com;lr>, <scscf.homenet.com:lr> <sip:pcscf.visitednet.com;lr> To: tel:+1-314-555-1234>;tag=g41334 From: sip:mobile1@homenet.com>;tag=34199357834 Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Contact: <sip:[::0000:aaaa:bbbb:cccc]:8767;comp=sigcomp> Require: 100rel Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSSAGE, REFER, UPDATE Content-Length: 0 SIP/2.0 200 OK Via: SIP/2.0/UDP pcscf.homenet.com;branch=z9hG4bka3423 Via: SIP/2.0/UDP scscf.homenet.com:branch=z9hG4bkkut Via: SIP/2.0/UDP pcscf.visitednet.com;branch=z9hG4bkghf Via: SIP/2.0/UDP :0000:1111:2222:33331:2343;comp=sigcomp branch=z9hG4bkdfewgh Record-Route: <sip:pscsf.homenet.com;lr>, <scscf.homenet.com:lr>, sip:pcscf.visitednet.com;lr> To: ktel:+1-314-555-1234>;tag=g41334 From: k<sip:mobile1@homenet.com>;tag=34199357834 Call-ID: 7o5452gfvtyrfghdgrtt6900gh CSeq: 15 INVITE Contact: k<sip:[::0000:aaaa:b