| 摘要 |
<p>PURPOSE: A system and a method for setting a call using plural standard SIP(Session Initiation Protocol) messages are provided to transmit standard SIP messages to set a call, thereby processing an SIP message without respect to a supporting standard of a system. CONSTITUTION: A terminal(100) transmits an SIP message by the first standard to a network server(200). The terminal transmits an SIP message by the second standard to the network server. The network server processes one of the SIP messages by the first and second standards to set a call. The SIP messages are generated based on an SIP.</p> |
