PROCESSING METHOD, SYSTEM AND DEVICE FOR REALIZING THE SERVICE COMMUNICATION OF DIFFERENT TYPES OF MESSAGES

摘要

A processing method realizing service communication based on Session Initiation Protocol SIP of different types of messages includes: receiving the SIP message based on the first type from the calling user terminal UE transmitted over the called side service calling control function S-CSCF by the interworking function entity in the called network side, converting the SIP message based on the first type to the SIP message based on the second type, transmitting the message based on the second type to the called UE. The invention also provides the system and the device for the service communication of different types of messages.