Spam checking for internetwork messages
US7239866B2 · kind B2 · utility
9Cited by
0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Apr 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.