| 摘要 |
FIELD: means of communication. ^ SUBSTANCE: invention refers to communication systems. There described is the method of initiating the communication based on IP-multimedia subsystem for the user who has not been registered in IP-multimedia subsystem before. The method involves the steps of the request received by the communication from the above user in SIP application server along the interface for external network, or receiving the input signals formed with inner or outer method and requesting the establishment of communication based on IP-multimedia subsystem, distribution to the user of service call session control function, transmission of SIP request from the application server to the distributed service call session control function, and establishment of the requested communication. ^ EFFECT: improving establishment of communication for the user. ^ 14 cl, 6 dwg |
