Routing of short messages in a telecommunication system

A method for transmitting short messages between mobile communication systems in a telecommunication system, comprising: a first mobile communication system (MSN1) which is based on a first mobile communication standard; a first center of the short message service (SMSC1) which is connected to the aforementioned mobile communication system (MSN1); a second system for mobile communications (MSN2) which is based on a second mobile communication standard; a second center of the short message service (SMSC2) which is connected to the aforementioned second mobile communication system (MSN2); one home location register (HLR), which is connected to the aforementioned second mobile communication system (MSN2); and mobile switching center (MSC), which is connected to the aforementioned second mobile communication system (MSN2); and a gateway (GW) which connects the aforementioned first (MSN1) and second (MSN2) mobile communication systems, the method comprising the steps of: receiving a short message in the aforementioned first center short message service (SMSC1 ); make a question of information data routing aforementioned first center short message service (SMSC1.