| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide simultaneous termination at SIP telephone sets constituting a group representative, when an incoming call is terminated at the group representative and an incoming-call response method. <P>SOLUTION: When an incoming call is terminated at the group representative, a master apparatus 10 calls all SIP telephone sets 40-1, 40-2 constituting the group representative by a "NOTIFY" message (S7). The SIP telephone set 40-2 responding to the message responds to the master apparatus 10 by a "NOTIFY" message (S11). The master apparatus 10 transmits a "200 OK" message, only to the responding SIP telephone set 40-2 (S12) and transmits the "NOTIFY" message to the non-response SIP telephone set 40-1 (S13). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
