According to your call-flow UA is sending BYE with authentication
credentials corresponding to the 401 for INVITE. Now Server/SIP-Proxy
usually uses a nonce value with a timestamp portion in it so as to protect
from replay or stale responses. So probably your response credential in BYE
is using a stale nonce (from 401 for Invite). I think solution is to send
the BYE first without credential and when a 401 is received generate the new
credentials accordingly and resend BYE with that.

 

 

Nittin Dutt

Newport Networks

 

  _____  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ravi Rupela
Sent: 14 September 2006 12:33
To: [email protected];
[EMAIL PROTECTED]
Subject: [Sip-implementors] Repeat Bye Request with Wrong Credentials

 

hi,
  I have doubt regarding repeated Bye request with wrong Authentication
credential ....


                                              UA
SIP Proxy/B2BUA
 
                                                        Invite
 
----------------------------->
                                                         401 (Unauthorised)
 
<----------------------------
                                                          Ack
 
------------------------------>
                                                          Invite with
Credential
 
--------------------------------->
                                                              200 OK
 
<---------------------------------
                                                                     Bye
 
-------------------------------->
 
401(Unauthorised)
 
<--------------------------------
 
Bye(Wrong Credential)
 
----------------------------------->
 
401(Unauthorised)
 
<------------------------------------
 
Bye(Wrong Credential)
 
-------------------------------------->           What Should I do now UA
keeps sending Bye with Wrong Credentials?                        
Thanking you,
                           




-- 
Confidence comes not from always being right but from not fearing to be
wrong.....
 
Ravi Rupela
Software Engineer
EliteCore Technologies
 
 


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