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Hi, Is it correct to have “user=phone” added only in
ACK’s To header while it is missing in initial INVITE, even though both the
messages use Tel-URI. Please refer to the trace below: Request-Line: INVITE
sip:+420577706610 at xyz.com SIP/2.0 Message
Header
Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bKf0m63e30306gvdocj180.1
To: <sip:041+420577706610 at xyz.com;transport=UDP>
From: <sip:608011912 at xyz.com;user=phone>;tag=t570lgsc
Call-ID: 10.6.0.13450701228437693202
CSeq: 2 INVITE
Max-Forwards: 66
Content-Length: 211
Contact: <sip:608011912 at X.X.X.X:5060;transport=udp>
Content-Type: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, PRACK
Accept: application/sdp
Status-Line: SIP/2.0 100 Trying Message
Header
Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bKf0m63e30306gvdocj180.1 f:<sip:608011912 at xyz.com;user=phone>;tag=t570lgsc
t:<sip:041+420577706610 at xyz.com;transport=UDP>
i:10.6.0.13450701228437693202
CSeq:2 INVITE
l:0
Status-Line: SIP/2.0 180 Ringing Message
Header
Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bKf0m63e30306gvdocj180.1
f:<sip:608011912 at xyz.com;user=phone>;tag=t570lgsc
t:<sip:041+420577706610 at xyz.com;transport=UDP>;tag=000000009EC735630000000000
i:10.6.0.13450701228437693202
CSeq:2 INVITE
l:0
Status-Line: SIP/2.0 200 OK Message
Header
Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bKf0m63e30306gvdocj180.1
f:<sip:608011912 at xyz.com;user=phone>;tag=t570lgsc
t:<sip:041+420577706610 at xyz.com;transport=UDP>;tag=000000009EC735630000000000
i:10.6.0.13450701228437693202
CSeq:2 INVITE
c:application/sdp
m:<sip:172.20.192.109:5060>
l:203
Request-Line: ACK sip:172.20.192.109:5060 SIP/2.0 Message Header
Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bKf0m63e30306gvdocj180.1
To: <sip:041+420577706610 at xyz.com;transport=UDP;user=phone>;tag=000000009EC735630000000000
From: <sip:608011912 at xyz.com;user=phone>;tag=t570lgsc
Call-ID: 10.6.0.13450701228437693202
CSeq: 2 ACK
Max-Forwards: 68
Content-Length: 0 Regards, Sunil |
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