×

Local control of call features in a telephone system

  • US 7,177,410 B2
  • Filed: 04/19/2005
  • Issued: 02/13/2007
  • Est. Priority Date: 03/28/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. A telephone system, comprising:

  • a controller phone part, connected to receive telephone communication over a communication link, and such that only said controller phone part receives said telephone communication, and having control circuitry therein, said controller phone part connected to allow control and communication to each of a plurality of auxiliary telephone units over a telephone line, said control carried out over said telephone line using control data at a different frequency than usual voice communication and at a different frequency than DSL; and

    at least one auxiliary telephone, also connected to said telephone line, and latching into a specified active or inactive mode,said controller phone part allowing activating said telephone line to receive communication from the controller, and to detect automatically an end of a telephone conversation, and resetting status of each of said auxiliary telephones upon detecting said end of communication.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×