Apparatus for dialing of caller ID block code and receiving call

Telephonic communications – Reception of calling information at substation in wireline... – Blocking caller id transmission

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Details

379 9305, 379199, 379372, H04M 156, H04M 1506, H04M 166

Patent

active

057968101

ABSTRACT:
An apparatus for providing a convenient and flexible way for a user to dial a block code which allows the user to withhold his/her identity and telephone number when the user makes a phone call. By programming different operation modes using the keys when the apparatus is in an on-hook status, the user may elect to have a block code dialed by manually pressing a block key when desired, or to have a prompt message displayed on the screen to remind him/her to press a key to dial the block code, if so desired, when the phone is off-hook, or to have the block code auto-dialed every time the phone is off-hook. When the apparatus is in an automatic block code dialing mode, the user may override this setting and have his/her caller ID sent on a per call basis. Another aspect of the invention is a circuit arrangement which is capable of reducing the speech/voice interference to the call waiting caller-ID-alert signal during normal telephone conversation, thus improving the chance of a successful caller ID data transmission during call waiting.

REFERENCES:
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patent: 5550908 (1996-08-01), Cai et al.
patent: 5583924 (1996-12-01), Lewis
patent: 5588049 (1996-12-01), Detering et al.
patent: 5590183 (1996-12-01), Yoneda et al.
patent: 5619561 (1997-04-01), Reese
Schwartz, Barry K., "The Analog Display Services Interface," IEEE Communications Magazine, vol. 31, No. 4, Apr. 1, 1993, pp. 70-75.

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