Spam checking for internetwork messages
AssigneeLucent Technologies Inc.
InventorsYigang Cai, Shehryar Qutub, Gyan Shanker, Alok Sharma
Life of this patent
Estimating the term…
Abstract
This invention relates to a method and apparatus for blocking spam messages originated in a different network. An anti-spam check is made in response to an initial Send Routing Information (SRI) message received in a destination network of a message. The result of this check is sent back to the originating network along with a destination address of a switch in the destination network, and SRI spam code and Mobile Terminated (MT) Routing Address Correlation ID. If SRI spam code indicates a spam, then subsequent transmission of the MT message with the same Correlation ID is blocked in the interworking switch or SMSC.
Claims8
In a telecommunications network interfacing with another telecommunications network, a method for identifying and blocking spam messages originated in the other network and destined for a terminal served by the telecommunications network, comprising the steps of:
- receiving a send routing information (SRI) message in said telecommunications network;
- responsive to receipt of said SRI message, deriving an SRI spam status code of said SRI message in said telecommunications network;
- returning said SRI spam status code and a correlation identifier to said another network in an SRI acknowledge message;
- storing said SRI spam status code;
- said another network returning a mobile termination (MT) message comprising said correlation identifier to said telecommunications network;
- in said telecommunications network, using said correlation identifier to find said SRI spam status code;
- and
- blocking transmission of messages for said MT message if said SRI spam status code indicates a spam message.
In a telecommunications network interfacing with another telecommunications network, apparatus for identifying and blocking spam messages originated in the other network and destined for a terminal served by the telecommunications network, comprising:
- means for receiving a send routing information (SRI) message in said telecommunications network;
- means, responsive to receipt of said SRI message, for deriving an SRI spam status code of said SRI message in said telecommunications network;
- means for returning said SRI spam status code and a correlation identifier to said another network in an SRI acknowledge message;
- means for storing said SRI spam status code;
- in said another network, means for returning a mobile termination (MT) message comprising said correlation identifier to said telecommunications network;
- in said telecommunications network, means for using said correlation identifier to find said SRI spam status code;
- and
- means for blocking transnmssion of messages for said MT message if said SRI spam status code indicates a spam message.
Dependencies are inferred from the claim text.