Hi all,
 
When i call from pstn to sip phone, and hang up it before someone pick up the sip phone, then my sems will show this error and immediately end the sems.
 
 
Error: changeSIPState(IsdnCall.cpp:339):unhandled SIP state transition(inbound) from (DISCONNECTED|DISCONNECTED) to (CONNECTED|DISCONNECTED)
 
 
What could be the problem?
 
Any help is appreciated. Thanks
 
Regards,
jorain