SipByeAckNotReceived

This event informs application software that the telephony engine did not receive a response from the far end of a phone call that is being terminated by the application.

Internally, the telephony engine waits for the far end of a call to acknowledge that the call is terminating. If you receive this event, you may want to call the SetCallTerminateTimeout API procedure to specify a longer call terminate time out value.

Most application software can ignore this event. If the far end does not respond in a timely manner to call termination requests, it has no effect on the telephony engine and future use of the specified phone line being terminated.