SipErrorListener

The SipErrorListener interface allows applications to receive notifications about various error conditions encountered during the processing of SIP transactions. By implementing this interface, applications can handle and respond to errors, ensuring proper error management in SIP communication.
This interface is part of the SIP Servlet event-driven architecture and extends the java.util.EventListener interface. Applications must register the implementation to be notified of error events.

Methods:

noAckReceived
void noAckReceived(SipErrorEvent ee)
This method is called by the servlet container to notify the application that no ACK was received for an INVITE transaction after a final response was sent upstream. It is applicable only for User Agent Server (UAS) applications and not for applications that proxied the INVITE.
Parameters:
ee: A SipErrorEvent object that identifies the request associated with the missing ACK.

noPrackReceived
void noPrackReceived(SipErrorEvent ee)
This method is called by the servlet container to notify applications acting as a UAS that no PRACK was received for a previously sent reliable provisional response. As per RFC 3262, the application may generate a 5xx response for the INVITE transaction. The original INVITE request and the unacknowledged reliable response can be accessed through the SipErrorEvent argument.
Parameters:
ee: A SipErrorEvent object that identifies the original INVITE request and the unacknowledged reliable provisional response.