The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2007
Filed:
Dec. 21, 2004
Yigang Cai, Naperville, IL (US);
Shehryar S. Qutub, Hoffman Estates, IL (US);
Gyan Shanker, Naperville, IL (US);
Alok Sharma, Lisle, IL (US);
Yigang Cai, Naperville, IL (US);
Shehryar S. Qutub, Hoffman Estates, IL (US);
Gyan Shanker, Naperville, IL (US);
Alok Sharma, Lisle, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
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.