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PTT SERVER, GATE APPARATUS, COMMUNICATION SYSTEM, PROGRAM AND COMMUNICATION METHOD

  • US 20090131092A1
  • Filed: 08/01/2006
  • Published: 05/21/2009
  • Est. Priority Date: 08/02/2005
  • Status: Active Grant
First Claim
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1. A Push-to-Talk server (PTT server) for providing a half-duplex data transfer service wherein transmission data from a terminal which is connected to a packet communication network and which is assigned with a transmission right is broadcast at a time via the packet communication network to terminals of a group to which the terminal belongs, comprising:

  • a unit which classifies terminals joining in a group into terminals of first kind having authority to assign the transmission right and terminals of second kind not having authority to assign the transmission right and thereby managing the respective terminals joining in the group; and

    a unit which assigns the transmission right to another terminal belonging to the group according to designation from the terminal of first kind.

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