Patent ID: 7797003
Filing Date: 2010-09-14
Classification: H04L,H04W

Abstract:
1. A telecommunications services apparatus for use with a mobile telecommunications network, the apparatus comprising means for receiving a MAP Send Routing Information for Short Message (SRI_SM message) originating from another network and operable to forward the SRI_SM message to a home location register, means for receiving a response from the home location register to the SRI_SM message, means for temporarily storing information relating to the SRI_SM response and operable to pass said response on to a network address identified as the originating address, means for receiving a MAP Mobile Terminated Forward Short Message (MT_Fwd_SM message) from said another network and operable to correlate the MT_Fwd_SM message with a previously-sent SRI_SM response using stored information, the apparatus being operable to detect and selectively reject MT_Fwd_SM messages for which there is at least insufficient correlation between the MT_Fwd_SM message and the previously-sent SRI_SM response, and to pass other MT_Fwd_SM messages on to their respective destinations.