METHOD AND SYSTEM FOR CHECKING THE ATTAINABILITY STATUS OF A MOBILE TERMINAL DEVICE

摘要

The method for executing a communication attempt with a mobile terminal device in accordance with the attainability status of a mobile terminal device in a cellular communication network having a Short Message Service Centre by the steps of: querying a SMSC in a cellular network for obtaining an attainability status of said mobile terminal device and delivering said communication attempt to said mobile terminal device in accordance with said attainability status. This invention allows an application to find out if a mobile terminal device e.g. a handset is reachable without actually contacting the handset. A short message service centre does this by initiating a mobile terminated delivery attempt but not finishing it but telling the application instead if the home location register of a cellular network thinks the handset is reachable or not.