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Call forwarding method and arrangement for a mobile terminating call

  • US 5,920,812 A
  • Filed: 01/04/1996
  • Issued: 07/06/1999
  • Est. Priority Date: 05/04/1994
  • Status: Expired due to Term
First Claim
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1. An arrangement for carrying out call forwarding in a mobile communication system including mobile stations, mobile exchanges and subscriber databases for maintaining user data, such as location data and activated services, said arrangement comprising:

  • a mobile exchange provided with means for making an intermediate announcement to a calling subscriber in connection with carrying out activated call forwarding;

    said mobile exchange being arranged to;

    receive a call to a called subscriber having a directory number;

    perform a routing information interrogation to a first database indicated by the directory number of the called subscriber;

    observe in the first database that call forwarding is activated for the called subscriber;

    start call forwarding;

    check on the basis of information obtained from the first database, or from a call set-up message, whether the call is a speech call or a data call; and

    prevent an intermediate announcement possible associated with call forwarding from being made if the call is a data call, butallowing the intermediate announcement to be made if the call is a speech call.

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