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Communication systems

  • US 8,391,908 B2
  • Filed: 11/28/2005
  • Issued: 03/05/2013
  • Est. Priority Date: 11/29/2004
  • Status: Expired due to Fees
First Claim
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1. A method, during a first communication on a first communication system, of establishing multiple instances of a different type of communication on a second communication system, comprising:

  • receiving an invitation, including a number of address details of at least one participant of the first communication, by a predetermined user having an address to join the first communication, wherein the address is stored in a contact list of a first communication terminal, an intermediate module arranged for, in response to receiving the invitation of the predetermined user, establishing the multiple instances of a different type of communication on a second communication system, wherein the first communication is a push-to-talk communication, wherein the multiple instances of the different type of communication are a telephone conference, wherein receiving an invitation includes;

    receiving the invitation at the intermediate module capable of accessing the address details of each participant within the invitation, wherein the intermediate module has communication access to a first communication manager and upon receiving the invitation, the intermediate module causing the first communication manager to terminate the first communication.

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