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Push to talk system

  • US 20060003783A1
  • Filed: 06/28/2005
  • Published: 01/05/2006
  • Est. Priority Date: 06/30/2004
  • Status: Active Grant
First Claim
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1. A PTT (push to talk) system that includes a plurality of PTT-capable mobile phones each including a display unit, and a server which mediates a PTT call between mobile phones out of the plurality of mobile phones, the server comprising:

  • a storage unit operable to store images of users of the plurality of mobile phones and phone identifiers of the plurality of mobile phones in correspondence with each other;

    a retrieval unit operable to retrieve, from the storage unit, an image corresponding to a phone identifier of a mobile phone involved in the PTT call; and

    a sending unit operable to send the retrieved image to at least one other mobile phone involved in the PTT call, wherein a display unit in the at least one other mobile phone displays the image sent from the server.

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