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Apparatus system and method for enabling multi-frequency communication over a telephone network having a billing/tax tone

  • US 6,674,843 B1
  • Filed: 05/28/1999
  • Issued: 01/06/2004
  • Est. Priority Date: 05/28/1999
  • Status: Expired due to Fees
First Claim
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1. An apparatus for enabling multi-frequency communication, comprising:

  • a connection port operable to couple to a telephone network;

    an output port coupled to the connection port, the output port operable to couple to a high frequency device; and

    a trap coupled between the connection port and the output port, the trap tuned to isolate the high frequency device from the telephone network at a specified frequency range, and wherein the trap is operable to isolate the high frequency device from the telephone network such that attenuation of an input signal in the specified frequency range is less than 3 dB.

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