Here the scenario :
2 voip phone (A and B) and 1 jitsi on windows (C).
A call B, B put on hold A and Call C, B complete transfer between A-C. When
B complete transfer, C have a this error and call end.
impl.protocol.sip.SipMessageFactory.throwOperationFailedException().2415
Failed to create INVITE request.
javax.sip.SipException: Dialog not yet established -- no response!
at gov.nist.javax.sip.stack.SIPDialog.createRequest(SIPDialog.java:2234)
GRAVE: [208]
impl.protocol.sip.OperationSetBasicTelephonySipImpl.processResponse().599
Received error: 491 Request Pending
GRAVE: [190] impl.protocol.sip.CallPeerSipImpl.processReInvite().517 Error
while trying to send a response
java.lang.NullPointerException
at
net.java.sip.communicator.service.protocol.media.CallPeerMediaHandler.getDefaultDevice(CallPeerMediaHandler.java:537)