| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To confirm a transmission destination before transmitting content data when the content data are transmitted. <P>SOLUTION: When a session is established before transmitting the content data, a CPU 50 in a composite machine 102 transmits an INVITE request to a SIP server 106 without adding values to a Proxy-Authenticate header concerning the INVITE request. When a response returned from the SIP server 106 is received again, the CPU 50 transmits an ACK request, and then, displays the SIP address of the transmission destination and the file name of the content data to be transmitted on the screen of a display part 58, respectively. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
