"Markus Hofmann" <[EMAIL PROTECTED]> schrieb am 10.09.04 11:15:12:
> 
> 
> Hi Anil,
> 
> but the you have to change the From and To Header.
> 
> INVITE
> UAC --> Proxy --> UAS
> From: <sip:[EMAIL PROTECTED]>;tag=9F8236D4-1F2E
> To: <sip:[EMAIL PROTECTED]>
> 
> BYE
> UAS(former UAC) <-- Proxy <-- UAC (former UAS)
> From: <sip:[EMAIL PROTECTED]>;tag=A3F462D1-3G5E
> To: <sip:[EMAIL PROTECTED]>;tag=9F8236D4-1F2E
> 
> In that moment where the other side generade the BYE Request The former UAC gets the 
> UAS and the former UAS gets the UAC. So the direction changes.
> 
> Greeting
> 
> Markus
> 
> "Anil Bollineni" <[EMAIL PROTECTED]> schrieb am 09.09.04 23:01:19:
> > 
> > The BYE is sent by the other party and that's why Contact is different
> > in INVITE and BYE. Is the original INVITE is generated by gateway or
> > proxy, because the IP in SDP and VIA IP is same. If the call is ended
> > prematurely on gateway side and possibly the other party is trying to
> > end the call this problem may happen. But unless we have complete call
> > flow it will be unable to predict what went wrong. 
> > 
> > Cheers,
> > Anil
> > 
> > This email contains material that is confidential. The content of this
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> > of third party materials or information.
> > 
> > 
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Charles
> > Eckel
> > Sent: Wednesday, September 01, 2004 1:10 PM
> > To: jenning zhang
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: [Sip-implementors] BYE message problem
> > 
> > The BYE is ok and should be forward by the Proxy based on the Route 
> > header to 24.226.0.126:5060. My guess is that the 481 is being sent by 
> > 24.226.0.126, not the proxy. The possible reasons for this are numerous,
> > 
> > but it hard to identify what the problem is without the complete call
> > flow.
> > 
> > Cheers,
> > Charles
> > 
> > jenning zhang wrote:
> > > Hi there,
> > > 
> > > Could some tell me what is problem with my BYE message, the proxy
> > always
> > > returns "481 Call Leg/Transaction Does Not Exist  "
> > > 
> > >
> > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> 
> > > 
> > > INVITE sip:[EMAIL PROTECTED]:5060;user=phone;transport=udp
> > SIP/2.0
> > > Via: SIP/2.0/UDP
> > > sip2.4ztech.com:5060;branch=eb2ba54e-361b5d59-15d5b31d-4fb80d8-1
> > > Record-Route:
> > >
> > <sip:[EMAIL PROTECTED]:5060;mad
> > dr=sip2.4ztech.com;transport=udp> 
> > > 
> > > Via: SIP/2.0/UDP 24.226.0.126:5060;received=24.226.0.126
> > > From: <sip:[EMAIL PROTECTED]>;tag=9F8236D4-1F2E
> > > To: <sip:[EMAIL PROTECTED]>
> > > Date: Mon, 30 Aug 2004 23:16:40 GMT
> > > Call-ID: [EMAIL PROTECTED]
> > > Supported: timer,100rel
> > > Min-SE: 1800
> > > Cisco-Guid: 2076193368-4195422680-3218703037-761164568
> > > User-Agent:    Cisco-SIPGateway/IOS-12.x
> > > Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER,
> > > SUBSCRIBE, NOTIFY, INFO
> > > CSeq: 101 INVITE
> > > Max-Forwards: 5
> > > Remote-Party-ID:
> > > <sip:[EMAIL PROTECTED]>;party=calling;screen=yes;privacy=off
> > > Timestamp: 1093907800
> > > Contact: <sip:[EMAIL PROTECTED]:5060>
> > > Expires: 180
> > > Allow-Events: telephone-event
> > > Content-Type: application/sdp
> > > Content-Length: 247
> > > 
> > > v=0
> > > o=CiscoSystemsSIP-GW-UserAgent 7721 7097 IN IP4 24.226.0.126
> > > s=SIP Call
> > > c=IN IP4 24.226.0.126
> > > t=0 0
> > > m=audio 18240 RTP/AVP 0 101
> > > c=IN IP4 24.226.0.126
> > > a=rtpmap:0 PCMU/8000
> > > a=rtpmap:101 telephone-event/8000
> > > a=fmtp:101 0-16
> > > a=ptime:20
> > > .
> > > .
> > > .
> > > .
> > > .
> > > 
> > >
> > <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> > <<<<<<<<<<<<<<<<<<<<<< 
> > > 
> > > BYE
> > >
> > sip:[EMAIL PROTECTED]:5060;tran
> > sport=udp 
> > > 
> > > SIP/2.0
> > > Via: SIP/2.0/UDP 24.226.1.217:5060;branch=z9hG4bK4133B6A7
> > > From: <sip:[EMAIL PROTECTED]>;tag=9F8236D4-1F2E
> > > To:    <sip:[EMAIL PROTECTED]>;tag=A3F462D1-3G5E
> > > Contact: <sip:[EMAIL PROTECTED]>
> > > Route: <sip:[EMAIL PROTECTED]:5060>
> > > Call-ID: [EMAIL PROTECTED]
> > > CSeq: 102 BYE
> > > Content-Length: 0
> > > 
> > > 
> > >
> > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>>>>> 
> > > 
> > > SIP/2.0 100 Trying
> > > Via: SIP/2.0/UDP
> > > 24.226.1.217:5060;received=24.226.1.217;branch=z9hG4bK4133B6A7
> > > Call-ID: [EMAIL PROTECTED]
> > > From: <sip:[EMAIL PROTECTED]>;tag=9F8236D4-1F2E
> > > To:    <sip:[EMAIL PROTECTED]>;tag=A3F462D1-3G5E
> > > CSeq: 102 BYE
> > > Content-Length: 0
> > > 
> > >
> > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>>> 
> > > 
> > > SIP/2.0 481 Call Leg/Transaction Does Not Exist
> > > Via: SIP/2.0/UDP
> > > 24.226.1.217:5060;received=24.226.1.217;branch=z9hG4bK4133B6A7
> > > From: <sip:[EMAIL PROTECTED]>;tag=9F8236D4-1F2E
> > > To:    <sip:[EMAIL PROTECTED]>;tag=A3F462D1-3G5E
> > > Call-ID: [EMAIL PROTECTED]
> > > CSeq: 102 BYE
> > > Content-Length: 0
> > > 
> > > 
> > > 
> > > Thank you very much
> > > 
> > > 
> > > Jenning Zhang
> > > 
> > > 
> > > _______________________________________________
> > > Sip-implementors mailing list
> > > [EMAIL PROTECTED]
> > > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
> > > 
> > 
> > 
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> > 
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> 
> 


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