[reSIProcate] why different between send 200 OK message and refer message in the Via header

[Robert Sparks]

The refer request is logged before it goes through the transport  
selector. The sent-by field will be populated based on which
transport (even which interface if you have more than one) the  
message is actually sent on based on 3263 resolution.

RjS

On Feb 6, 2007, at 12:11 AM, maodonghu wrote:

> resip
>
>
> why different between send 200 OK message and refer message in the  
> Via header
>
>
>
> [14:01:03]			onConnected
>
>
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP  
> 192.168.2.143:5060;branch=z9hG4bK1c0a8028f45c81990-35d-ac89
> Contact: <sip:63471111 at 192.168.2.22:37000;user=phone>
> To: <sip:63471111 at 192.168.2.22:37000>;tag=8b03dd2c
> From: "6591000508"<sip: 
> 6591000508 at 192.168.2.143:5060>;tag=t1170741648-co861
> Call-ID: 1170741648885806400-0 at 192.168.2.6
> CSeq: 6090 INVITE
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, NOTIFY, REFER
> Content-Type: application/sdp
> User-Agent: hmd/2.0
> Content-Length: 182
>
>
>
> [14:01:03]			Ready to send...
> REFER sip:6591000508 at 192.168.2.143:5060 SIP/2.0
> Via: SIP/2.0/ ;branch=z9hG4bK-d8754z-ce36cf488e13cd26-1--- 
> d8754z-;rport
> Max-Forwards: 70
> Contact: <sip:63471111 at 192.168.2.22:37000;user=phone>
> To: "6591000508"<sip:6591000508 at 192.168.2.143:5060>;tag=t1170741648- 
> co861
> From: <sip:63471111 at 192.168.2.22:37000>;tag=8b03dd2c
> Call-ID: 1170741648885806400-0 at 192.168.2.6
> CSeq: 2 REFER
> Subject: callinfo=01103480026010656324137701016NWRK050000002924
> Refer-To: <sip:6563241377 at 192.168.2.143? 
> Replaces=NTcyNDBhZjA1NDIyZWE3OWY5NWM0NGFlNDI0YTY5MGY.!3Bto-tag! 
> 3Dt1170741663-co863!3Bfrom-tag!3D04639a52>
> Referred-By: <sip:63471111 at 192.168.2.22:37000;user=phone>
> Content-Length: 0
>
>
>
> can you see? the Via in refer lack of    "/UDP 192.168.2.143:5060"
>  				
>
> 　　　　　　　　maodonghu
> 　　　　　　　　hhmmdd at tom.com
> 　　　　　　　　　　2007-02-06
>
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