Spam checking for internetwork messages

Details Spam checking for internetwork messages Spam checking for internetwork messages

2007-07-03

2007-07-03

Mehrpour, Naghmeh (Department: 2617)

Telecommunications

Radiotelephone system

Special service

C455S422100

Reexamination Certificate

active

11018908

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.

REFERENCES:
patent: 2003/0083078 (2003-05-01), Allison et al.
patent: 2004/0167968 (2004-08-01), Wilson et al.
patent: 2005/0101306 (2005-05-01), Zabawskyj et al.
patent: 2005/0101337 (2005-05-01), Wilson et al.
patent: 2005/0176433 (2005-08-01), Wilson
patent: WO 03/049461 (2003-06-01), None
patent: WO 2005/091656 (2005-09-01), None

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