Sivananthan T Chelliah

US Patent:

6711402, Mar 23, 2004

Filed:

Aug 6, 1998

Appl. No.:

09/129909

Inventors:

Sivananthan Chelliah - Plano TX
John Visser - Nepean, CA

Assignee:

Nortel Networks Ltd. - St. Laurent

International Classification:

H04Q 720

US Classification:

455415, 4554221, 45541401, 37914201, 37914208, 37914203, 37914204

Abstract:

A mobile station in a cellular telecommunication network includes an apparatus and method for storing a calling party identification signal. This calling party identification signal is transmitted to an originating MSC along with the call set up signals. The originating MSC then transmits the calling party identification signals to an HLR which transmits them to a serving MSC for delivering to the called party mobile station. Accordingly, the method and apparatus support the delivery of calling party identification signals to the called party without requiring the creation and maintenance of databases for storing such information. The mobile station as well as the MSCs adaptive to store the calling party information signals and to receive and transmit the same. The communication signal definitions between the mobile stations MSCs base stations HLRs and VLRs are all adapted to include and support the transmission of the calling party identification signals which are permanently stored in the mobile station.

US Patent:

59152206, Jun 22, 1999

Filed:

May 5, 1997

Appl. No.:

8/851322

Inventors:

Sivananthan Chelliah - Plano TX

Assignee:

Northern Telecom Limited

International Classification:

H04Q 720

US Classification:

455435

Abstract:

A system and method is implemented within a telecommunications network, such as a cellular telephone network, for maintaining updated profile information for each mobile subscriber registered within the network. Updated profile information about each mobile subscriber is maintained within a particular mobile switching center currently communicating with the particular mobile subscriber. This process is performed with minimal utilization of bandwidth between the various mobile switching centers in the telecommunications network by maintaining subscriber service profile information within mobile switching centers, even though the associated mobile subscriber has roamed from that mobile switching center. When the subscriber service profile information is updated, then the subscriber service profile information is downloaded to a mobile switching center currently serving the mobile subscriber.