Telephone device for caller identification

Details Telephone device for caller identification Telephone device for caller identification

1997-12-18

1999-10-19

Loomis, Paul

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379376, H04M 156

Patent

active

059701285

ABSTRACT:
A Caller ID telephone device is shown, which can identify the caller of a telephone call in either the on-hook or off-hook states. The CID telephone device includes a circuit for detecting a CPE alerting signal, a circuit for generating an acknowledgment signal when the CPE alerting signal is detected, a circuit for demodulating the modulated CID data stream, and a circuit for analyzing the data stream and output parallel data.

REFERENCES:
patent: 5602908 (1997-02-01), Fan
patent: 5649002 (1997-07-01), Brady et al.
patent: 5781621 (1998-07-01), Lim
patent: 5783967 (1998-07-01), Takaya
patent: 5836009 (1998-11-01), Diamond et al.

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