Event Listeners

Event Listeners in the SIP Servlet API provide a mechanism for handling key events that occur during the operation of SIP applications. These listeners enable event-driven programming, allowing applications to respond dynamically to changes in their environment or signaling processes.

The SIP Servlet API requires full support for the application listeners and events defined in the Servlet API (Chapter 10), excluding HTTP-specific events from the javax.servlet.http package. It mandates support for the servlet context events defined in the javax.servlet package while extending functionality to include SIP-specific events.