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Adapter for connecting a modem to a digital private branch exchange

  • US 5,677,946 A
  • Filed: 08/14/1995
  • Issued: 10/14/1997
  • Est. Priority Date: 08/14/1995
  • Status: Expired due to Fees
First Claim
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1. A digital telephone system comprising:

  • a digital private branch exchange;

    at least one digital telephone connected to the digital private branch exchange and having a base unit and a handset with voice signals being coupled bi-directionally between the base unit and the handset;

    a separate adapter includinga first terminal coupled to the base unit;

    b) a second terminal coupled to the handset and passing the voice signals to and from the handset;

    c) a third terminal receiving an analog signal from a data device external to the telephone; and

    d) a user operated mechanical switch coupled to the first, second and third terminals for selectively coupling the terminals in two switching states further comprisinga first state wherein the voice signals are coupled between the handset and the base unit; and

    a second state wherein the analog signal is coupled from the data device to the base unit.

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