SipSubscriptionNetworkError

 

The SipSubscriptionNetworkError event is sent to application software when the telephony engine detects a fatal network error when it attempts to transmit event subscription information.
 

This event will also be sent to the application if the network cable gets unplugged during normal SUBSCRIBE operations.

When an application receives this event, the media engine event callback procedure SIPCALLBACKPROC will have a non zero value assigned for the pEventData parameter. This value is a pointer to the SUBSCRIBE_RESULTS structure which contains additional information for this event.