Patent ID: 8014800

Claim:
A method of enabling a mobile terminal user currently roaming in a visited mobile network to execute a purchase in the visited mobile network by means of an SMS payment mechanism, the method comprising the following steps: receiving an SMS message from said mobile terminal, said message containing a purchase request using the SMS payment mechanism, detecting that the received SMS message is directed to an external SMS centre in a home mobile network of said user different from the visited one, by reading a field in the SMS message containing an address of the external SMS centre which has been automatically added to the SMS message by said mobile terminal, modifying the received SMS message by changing the address of the external SMS centre into the address of an internal SMS centre in the visited network, and routing the modified SMS message towards the internal SMS centre according to the changed address, such that the purchase can be confirmed if a called number in the message matches a product/service provider registered as being authorized to offer said SMS payment mechanism.