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Short message system, especially prepaid message system

  • US 20030036394A1
  • Filed: 04/22/2002
  • Published: 02/20/2003
  • Est. Priority Date: 05/30/2001
  • Status: Active Grant
First Claim
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1. Short message system for handling short messages (SMS-MO) sent by mobiles (MO), comprising switching arrangements (MSC) on which the mobiles (MO) depend for radio connection, and short message servers (SMSC) at which the messages from a mobile (SMS-MO) arrive and are routed back, in the form of messages “

  • destined for a mobile”

    (SMS-MT), to the destination mobiles (MO′

    ), the mobile sending messages (SMS-MO) including in the message the address of the server (SMSC) of its card (SIM), which system is characterised in that it comprises a virtual server (SMSC-V) which is defined by its address (ADR-V) and is associated with an operator, a real server (SMSC-R) which is defined by its address (ADR-R), the address (ADR-V) of the virtual server (SMSC-V) being the only server address recorded on the cards (SIM), the switching arrangement (MSC) contains an address translator for replacing the address (ADR-V) of the virtual server (SMSC-V) with that (ADR-R) of the real server (SMSC-R) to which the message (SMS-MO) will be routed, which real server handles the message and routes it to the intended receiver (MO′

    ).

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