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Computer telephony integrated network

  • US 6,337,857 B1
  • Filed: 09/22/1998
  • Issued: 01/08/2002
  • Est. Priority Date: 04/18/1997
  • Status: Expired due to Term
First Claim
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1. A Computer Telephony Integration (CTI) arrangement comprising:

  • a CTI-enabled switch, a lookup table, and a CTI computer;

    the CTI-enabled switch being arranged to perform the following;

    (1) to respond to receipt of a call terminating thereon by;

    (1a) retrieving a dialled directory number from signalling data of said terminating call, and (1b) sending to the CTI computer a route request signal including the retrieved dialled directory number of said terminating call, (2) to respond to receipt of a route select signal from the CTI computer by;

    (2a) applying ring back treatment with respect to said terminating call, (2b) holding said terminating call until receipt of a signal from the CTI computer for causing the connection of said terminating call to another call, (3) to respond to receipt from the CTI computer of notification of calls to be made to a plurality of directory numbers by originating, in parallel, a call to each of said plurality of directory numbers, (4) to respond to an answer condition of any of the originating calls by sending an answer signal with respect to that answered call to the CTI computer, and (5) to respond to receipt from the CTI computer of a signal for causing the connection of said terminating call to said answered originating call by making a connection;

    the lookup table being arranged to store a plurality of entries, each entry comprising a first part containing a respective directory number associated with a respective user of the CTI arrangement, and a second part containing a plurality of directory numbers; and

    the CTI computer being arranged to perform the following;

    (6) to respond to receipt from the CTI-enabled switch of said route request signal by;

    (6a) sending to the CTI-enabled switch a route select signal, (6b) accessing the lookup table in accordance with the retrieved dialled directory number of said terminating call, (6c) retrieving the second part of the entry whose first part contains a directory number matching the retrieved dialled directory number of said terminating call, (6d) sending to the CTI-enabled switch notification of calls to be made to the plurality of numbers of the retrieved second part, and (7) to respond to receipt of a call answered signal from the CTI-enabled switch with respect to one of said originating calls, by sending to the CTI-enabled switch a signal for causing the connection of said terminating call to said answered originating call.

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