| 摘要 |
PROBLEM TO BE SOLVED: To realize various applications which can utilize various data, by mutually exchanging data of various applications managed by a mobile information terminal and data managed by a digital private branch exchange. SOLUTION: A digital private branch exchange 1 has an outside wire interface part 12, an extension interface 14 for connection to a telephone set 2 only for digital system, and an exchange control part 11 for general control, and the telephone set 2 has an extension interface part 22 for connection to the digital private branch exchange 1, a serial interface part 26 for connection to the mobile information terminal 4, a display part 24, an operation part 23, and a telephone control part 21 for general control, and the mobile information terminal 4 has a serial interface part for connection to the telephone set 2, a terminal control part for general control, a display part 41, and an operation part. COPYRIGHT: (C)2004,JPO
|
