Patent Number: 7,085,589

Title: Multifunction telephone and multifunction telephone switching system using the same

Abstract: A multifunction telephone switching system includes a portable radiophone, a plurality of multifunction telephones, a specific one of which is connected to the portable radiophone, and a control unit connected to the plurality of multifunction telephones to manage the plurality of multifunction telephones. The specific multifunction telephone notifies a call arrival at the portable radiophone to the control unit. The control unit permits response to an arrived call for the specific multifunction telephone based on an operation state of the specific multifunction telephone. The specific multifunction telephone responds to the arrived call at the portable radiophone in response to the permission.

Inventors: Tezuka; Asumaru (Tokyo, JP)

Assignee: NEC Infrontia Corporation

International Classification: H04M 1/00 (20060101)

Expiration Date: 8/01/02018