Storing anti-spam black lists
First Claim
1. In a telecommunications network a method of blocking unwanted message or voice connections comprising the steps of:
- receiving a call request in a switch of said telecommunications network;
requesting the service of a location server to identify the location of a called party of said call request;
in said location server, checking whether a source of said call request is on a black list of sources for which connections are to be denied;
responsive to finding that said destination is on said black list, sending a response message to said switch to deny establishment of a connection specified in said call request.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for blocking unwanted messages (spam) in a telecommunications network. A location server of the network stores black lists of message sources which are known or believed to be generators of spam messages, or sources from which a particular destination does not wish to receive messages. When a location inquiry is made to a location server, such as a home location register (HLR) of a mobile network or a home subscriber server (HSS) of an Internet Protocol network, wherein is stored a table of sources which have been black listed because they are believed to be sources of spam messages. Advantageously, this arrangement avoids use of network resources to make extensive checks to identify spam messages.
-
Citations
18 Claims
-
1. In a telecommunications network a method of blocking unwanted message or voice connections comprising the steps of:
-
receiving a call request in a switch of said telecommunications network;
requesting the service of a location server to identify the location of a called party of said call request;
in said location server, checking whether a source of said call request is on a black list of sources for which connections are to be denied;
responsive to finding that said destination is on said black list, sending a response message to said switch to deny establishment of a connection specified in said call request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. In a telecommunications network, apparatus for blocking unwanted message or voice connections, said apparatus comprising:
-
means for receiving a call request in a switch of said telecommunications network;
means for requesting the service of a location server to identify the location of a called party of said call request;
in said location server, means for checking whether a source of said call request is on a black list of sources for which connections are to be denied;
responsive to finding that said destination is on said black list, means for sending a response message to said switch to deny establishment of a connection specified in said call request. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification