This interface is the solution for https://jain-sip.dev.java.net/issues/show_bug.cgi?id=337
It allows to wrap the JSIP pipeline and execute custom analysis logic as SIP messages advance
through the pipeline checkpoints.
This method is called immediately after a SIP message has been parsed and before it is processed
in the JAIN SIP pipeline.
This message is called after the message has been processed by JAIN SIP
This method is called when the interceptor is initialized. You can perform any initialization here.
This method is called when the interceptor is about to be destroyed. You can perform any cleanup here.