IP telephone apparatus and IP telephone system

Details IP telephone apparatus and IP telephone system IP telephone apparatus and IP telephone system

2006-06-06

2006-06-06

Tran, Sinh (Department: 2646)

Telephonic communications

Supervisory or control line signaling

Substation originated

C379S387010, C370S352000

Reexamination Certificate

active

07058171

ABSTRACT:
An IP telephone apparatus for executing a telephone call through a computer network. The IP telephone apparatus includes: a main unit; a telephone line connection unit connected to a telephone network; an external telephone connection unit connectable to an external telephone; a dialing start command detection unit configured to detect an IP telephone dialing start command; an audio signal input/output unit that inputs/outputs an audio signal; a handset validation unit configured to selectively validate one of a handset of the main unit and a handset of the external telephone; an audio signal path switching unit that switches a connection target of the validated handset from the telephone line connection unit to the audio signal input/output unit when the IP telephone dialing start command is detected so that the audio signal input/output unit can be transmitted to the network terminal through the computer network.

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patent: WO 01/65809 (2001-09-01), None
patent: WO 02/3777 (2002-05-01), None

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