System for call request which results in first and second call handle defining call state consisting of active or hold for its respective AV device

  • US 5,896,500 A
  • Filed: 06/07/1996
  • Issued: 04/20/1999
  • Est. Priority Date: 10/01/1993
  • Status: Expired due to Term
First Claim
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1. A teleconferencing system comprising:

  • (a) a plurality of AV devices, each capable of(i) originating and reproducing(1) user related audio and video signals;

    (b) a plurality of communications ports, each supporting(i) at least one of the group of switch connections consisting of(1) video in, video out, audio in and audio out; and

    (c) at least one communication path,(i) arranged for transport(1) of audio and video signals,wherein the system is configured to(i) to control a communication connection(1) between two of the AV devices,(2) over the communication path,(ii) by creating,(1) as a result of a call request,(2) at least a first call handle,i. associated with one of the two AV devices and, thereafter,(3) at least a second call handle,i. associated with the other AV device,(4) each call handle defining,i. for its respective AV device,ii. a call state, being at least one of the group consisting of active and hold states; and

    iii. the port switch connections involved in the communications connection.

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