Dialog's local tag wrongly replaced!

Hi,
 
I found a problem within the SIP stack while trying to blind transfer a
call by sending a REFER request on an existing dialog. On receiving of a
202 Accepted response to the REFER request, the SIP stack sets the local
tag of the dialog to the remote one (this behavior is wrong because the
REFER request was sent on the existing dialog and therefore the SIP
stack should not change the local tag!) All other requests that are sent
by the remote side later can not be responded any longer due to dialog's
tag mismatch:
 
javax.sip.SipException: Response tags dont match with Dialog tags

at
gov.nist.javax.sip.stack.SIPServerTransaction.sendResponse(SIPServerTran
saction.java:1313)

at
com.siemens.media.callcontrol.provider.sip.SipManager.sendResponse(SipMa
nager.java:514)

at
com.siemens.media.callcontrol.provider.sip.SipManager.sendResponse(SipMa
nager.java:554)

at
com.siemens.media.callcontrol.provider.sip.CallManager.processBye(CallMa
nager.java:1505)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)

at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at
com.siemens.media.callcontrol.provider.sip.SipManager.processRequest(Sip
Manager.java:802)

at gov.nist.javax.sip.EventScanner.deliverEvent(EventScanner.java:219)

at gov.nist.javax.sip.EventScanner.run(EventScanner.java:477)

at java.lang.Thread.run(Thread.java:595)

 
Duy

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