Comment #1 on issue 2354 by alexander.kozlov.IV:
B2buaHelper.createResponseToOriginalRequest() does not set different To tag
to created response.
http://code.google.com/p/mobicents/issues/detail?id=2354
SIP Servlet Specification, version 1.1
12.5 Original Request and Session Cloning
The incoming request that results in creation of a SipSession is termed as
the original request, a response to this original request can be created by
the application even if the request was committed and application does not
have a reference to this request. This is necessary because the B2BUA
application may require to send more than one successful response to a
request. For example, when a downstream proxy forked and more than one
success responses are to be forwarded upstream. This can only be required
on initial requests, as only original requests shall need such multiple
responses.
SipServletResponse
B2buaHelper.createResponseToOriginalRequest(SipSession session, int
status, String reasonPhrase) throws IllegalStateException;
The response thus generated MUST have a different "To" tag from the other
responses generated to the request and must result in a different
SipSession. In this (and similar) cases the container clones the original
SipSession for the second and subsequent dialogs, as detailed in 6.2.3.2
Derived SipSessions. The cloned session object will contain the same
application data but its createRequest method will create requests
belonging to that second or subsequent dialog, that is, with a "To" tag
specific to that dialog.