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Method and system for messaging across cellular networks and a public data network

  • US 8,660,614 B2
  • Filed: 09/06/2011
  • Issued: 02/25/2014
  • Est. Priority Date: 03/06/2000
  • Status: Expired due to Term
First Claim
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1. A non-transitory computer-readable storage medium comprising instructions stored thereon that when executed by one or more processors of a mobile device, cause the one or more processors of the mobile device to perform steps comprising:

  • sending a sign on function from the mobile device based on a manual selection by a user of the mobile device, the manual selection not being associated with a power-on sequence;

    displaying a list of users of a communications system, the users on the list being associated with the user of the mobile device;

    receiving, in response to the sent sign on function, availability information of one or more users on the list of users to communicate using instant messages;

    displaying the availability information on a display of the mobile device;

    displaying, on the display of the mobile device, a selectable option for modifying users on the list of users;

    receiving a selection of the selectable option; and

    modifying the users on the list of users in response to the selection of the selectable option.

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