SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR DISTRIBUTING APPLICATION OR HIGHER LAYER COMMUNICATIONS NETWORK SIGNALING ENTITY OPERATIONAL STATUS INFORMATION AMONG SESSION INITIATION PROTOCOL (SIP) ENTITIES

摘要

System, method and computer program product, for distribute application or higher communications network signaling entity operational status information SIP entity in be disclosed. According on one side, a kind of method comprises determining that application or the higher communications network signaling entity of running state information. In addition, this method includes identifying that at least one second SIP entity receives operational status information. This method also includes distribution running state information at least one second SIP entity described in. First SIP entity, at least one described second SIP entity, and application or higher communications network signaling entity and network node departing from subscriber communication terminal.