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Method and device for establishing a conference call between a plurality of user terminals of a communication network

  • US 7,526,281 B2
  • Filed: 09/09/2004
  • Issued: 04/28/2009
  • Est. Priority Date: 05/20/2004
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a first list of identifiers corresponding to a plurality of user terminals with which a conference call is to be established;

    determining, by a control device, that at least one identifier represents a second list comprising a plurality of other user terminals each having their own other identifiers;

    retrieving the other identifiers from the second list;

    establishing the conference call, in a communication network, with the plurality of user terminals in the first list and the plurality of other user terminals represented by the at least one identifier in the first list; and

    allowing the user terminals corresponding to identifiers from the first and second lists to participate in the conference call if the identifiers are on an access control list.

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