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Method and apparatus for installing telephone intercom-voice messaging apparatus at doorbell for dwelling

  • US 6,185,294 B1
  • Filed: 02/03/1998
  • Issued: 02/06/2001
  • Est. Priority Date: 11/01/1996
  • Status: Expired due to Fees
First Claim
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1. In combination with a dwelling, said dwelling includingat least one telephone line carrying a selected current of less than about two amps, and a telephone connected to the telephone line and having an assigned telephone number utilized to call the telephone, a doorbell response system including (a) an auxiliary unit including (i) an auxiliary doorbell button, (ii) a speaker, (iii) a microphone, (iv) dialing means activated by a user for initiating the dialing of a telephone number, (v) connector means for connecting said auxiliary unit to the telephone line to enable a person to communicate via said microphone and said speaker with another person speaking over the telephone line, (vi) means for eliminating for a selected period of time after the auxiliary door button is depressed the dial tone in the telephone line so that a person may utilize said microphone and speaker to converse over the telephone line with another person using the telephone in the dwelling, and (vii) means for dialing a number when said dialing means is activated by a user to initiate the dialing of a selected telephone number;

  • (b) a battery for providing power to at least one of said auxiliary unit and the telephone; and

    , (c) means for connecting the telephone line to said battery such that the telephone line provides a trickle charge for said battery.

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