To solve the problem of being only able to respond with a low-function communication terminal even when a high-function communication terminal is available for response.
In the case where a communication terminal 2A is being used for a call when an incoming call is received from an IP telephone network 100 and the communication terminal 2A has higher communication capability than communication terminals 2B,... which are in standby state, an IP telephone router 1 proposes switching of the communication in progress to another communication terminal 2B,..., switches the communication from the terminal 2A to the communication terminal 2B,..., and the new call is answered from the communication terminal 2A. In this way, the invention solves the problem of being only able to respond with other low-function communication terminal even when a high-function communication terminal is available for response because the high-function communication terminal is in use when multiple communications are performed.
| JPH02121493 | CALLER NOTIFYING SYSTEM |
| JP3974310 | Multimedia communication system |
| JP2949095 | TELEPHONE TERMINAL EQUIPMENT |
YAMAMOTO SHUNICHIRO
NISHIKAWA YOSHIKI
OHATA HIROYOSHI
JINSENJI HIROSHI
| JP2001203756A | 2001-07-27 | |||
| JP2004040191A | 2004-02-05 | |||
| JP2007104163A | 2007-04-19 | |||
| JP2009231882A | 2009-10-08 | |||
| JP2008271380A | 2008-11-06 | |||
| JP2006054654A | 2006-02-23 | |||
| JP2005311577A | 2005-11-04 |
Rie Kudo