Patent ID: 6944467
Filing Date: 2005-09-13
Classification: H04W

Abstract:
1. A method for transmitting short messages between mobile communication systems in a telecommunication system which includes a first mobile communication system based on a first mobile communication standard, a first short message service centre connected to the first mobile communication system, a second mobile communication system based on a second mobile communication standard, a second short message service centre connected to the second mobile communication system, a home location register connected to the second mobile communication system, a mobile services switching centre connected to the second mobile communication system, and a gateway for communicating with the first and second mobile communication systems, said method comprising the steps of: receiving at the first short message service centre, from a user of the first mobile communication system, a short message directed to a predetermined numerical address space; initiating, at the first short message service centre, a routing data query for the received short message by sending the routing data query to the gateway; returning, from the gateway to the first short message service centre in response to the routing data query, an address of the gateway; and transmitting the received short message from the first short message service centre by routing the received short message from the first short message service centre to the gateway for further transmission of the message from the gateway to the second mobile communication system.