IP telephone apparatus and IP telephone system

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

2007-10-02

2007-10-02

Woo, Stella (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

C379S093070, C370S352000

Reexamination Certificate

active

10667425

ABSTRACT:
An IP telephone apparatus having a plurality of types of calling functions including a telephone calling function for telecommunicating via a telephone network and a network calling function for telecommunicating via a computer network. The IP telephone apparatus includes a calling function detection unit configured to detect which calling function of the telephone calling function and the network calling function is selected, and a calling function notification unit that notifies a user that at least one of general telephone using the telephone calling function and network telephone using the network calling function is being in operation according to a detection result of the calling function detection unit.

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