Patent ID: 7590678
Filing Date: 2009-09-15
Classification: H04M,H04Q,H04W

Abstract:
1. A method, comprising: receiving a first message requesting a tariff for a connection and including a subscriber identity field comprising an indication of a subscriber identity of a terminal that is to terminate the connection, each terminal in a communications system being associated with any of a plurality of operators and being addressable by the subscriber identity formatted to include a first field and a second field, the first field being, for at least some of the subscriber identities, indicative of the operator with which a respective subscriber identity is associated; determining the operator to which the subscriber identity of the terminal that is to terminate the connection is assigned, and content of the first field that is associated with that operator; forming a modified subscriber identity having as a second field at least a content of the second field of the subscriber identity of the terminal that is to terminate the connection and having as a first field the content of the first field that is associated with that operator; forming a second message requesting a tariff for a connection and including a subscriber identity field comprising the modified subscriber identity; and transmitting the second message to a service control function configured to analyse a subscriber identity received in a message requesting a tariff for a connection to determine a tariff based on the first field of the received subscriber identity.