Hi all,
I am developing an IMChat application using Nokia SIP Stack.
Kindly c my problem and help me in this.. there are 2 issues..

1)I want to know whether the CALLID will be same in REGISTER, INVITE, MESSAGE,BYE for a particular session.

2) And when i am sending a BYE Request i am getting 481 (NO DIALOG FOUND) response!!!!!!!!
If anyone has encountered the same problem,..plzz let me know.

I can see the BYE packet going in the network as:

/********************************************************/
Session Initiation Protocol
Request-Line: BYE sip:minu@172.19.25.22 SIP/2.0
Message Header
Via: SIP/2.0/UDP 172.19.25.21:5060;branch=z9hG4bKCew6vUOO2MXge
To: sip:minu@172.19.25.22;tag=_zxwyt30no
From: sip:smilie@172.19.25.21;tag=FjU6vPYYrk
Supported: sec-agree
Call-ID: FKM6vRvhxQ60RH2TswVdthy6hAenZx
CSeq: 170 BYE
Max-Forwards: 70
Content-Length: 0


/********************************************************/
This is the response i'm getting for BYE

/********************************************************/

Session Initiation Protocol
Status-Line: SIP/2.0 481 No dialog found
Message Header
Via: SIP/2.0/UDP 172.19.25.21:5060;branch=z9hG4bKCew6vUOO2MXge
To: sip:minu@172.19.25.22;tag=_zxwyt30no
From: sip:smilie@172.19.25.21;tag=FjU6vPYYrk
Call-ID: FKM6vRvhxQ60RH2TswVdthy6hAenZx
CSeq: 170 BYE
Content-Length: 0
/******************************************************/

Thanks in advance,
Mini