Community dialing circuit apparatus for pots phone and IP phone

Details Community dialing circuit apparatus for pots phone and IP phone Community dialing circuit apparatus for pots phone and IP phone

2006-06-13

2006-06-13

Tran, Sinh (Department: 2646)

Telephonic communications

Supervisory or control line signaling

Substation originated

C379S355020, C379S368000, C379S433070

Reexamination Certificate

active

07062035

ABSTRACT:
A community dialing circuit apparatus for IP phone and POTS phone is provided. The apparatus includes an IP phone system, a POTS phone system, an insulation system connected between the IP phone system and the POTS system, and a keypad connected to the IP phone system and the POTS system for inputting the phone number. When the city power is on and a phone number having a format of the IP phone number is inputted, the POTS phone is disabled and the IP phone is activated. When the city power is on and a phone number having a first format of the POTS phone number is inputted, the POTS phone is activated and the IP phone is disabled. When the city power is off and a phone number having a second format of the POTS phone number is inputted, the IP phone is turned off and the POTS phone is activated.

REFERENCES:
patent: 6371780 (2002-04-01), Aponte et al.
patent: 2002/0007459 (2002-01-01), Cassista et al.
patent: 2003/0021261 (2003-01-01), Ahn et al.
patent: 2003/0086559 (2003-05-01), Chen et al.
patent: 2004/0052242 (2004-03-01), Laturell
patent: 2004/0176085 (2004-09-01), Phillips et al.

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