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Caller identification using push-to-talk protocol for wireless communications devices

  • US 20050287997A1
  • Filed: 06/29/2004
  • Published: 12/29/2005
  • Est. Priority Date: 06/29/2004
  • Status: Active Grant
First Claim
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1. A mobile terminal comprising:

  • a transceiver to transmit and receive signals in a half-duplex mode;

    a push-to-talk actuator to activate the transceiver in the half-duplex mode; and

    a controller to generate a SIP signaling message including information associated with a calling party'"'"'s customized caller ID responsive to the actuation of the push-to-talk actuator.

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