05768509 is referenced by 256 patents and cites 12 patents.

A short message server (SMS) is provided with memory for storing short messages, and a SMS gateway/interworking (processing) block. The SMS accepts all properly formatted incoming messages, and queries an HLR database for destination information as well as to determine whether the destination of each incoming message is valid and authorized. If the destination is either not valid or not authorized, the SMS sends an error message to the originator, and effectively deletes the message from its memory. Where the destination is valid and authorized, the message is forwarded towards its destination. The SMS specifically does not include a subscriber database, and instead relies on the communication with the HLR and its subscriber database to provide the necessary information. Communication between the SMS and the HLR is preferably via the GSM MAP (mobile application part) protocol.

Title
Short message server without local customer database
Application Number
8/628902
Publication Number
5768509
Application Date
April 8, 1996
Publication Date
June 16, 1998
Inventor
Tuncay Gunluk
Stratford
CT, US
Agent
Thomas A Gallagher
David S Jacobson
David P Gordon
Assignee
ADC NewNet
MN, US
IPC
G06F 13/00
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