Patent ID: 7151923
Filing Date: 2006-12-19
Classification: H04M,H04W

Abstract:
1. A message waiting notification update system, operable in a cellular communication network, for maintaining a count of the unread messages stored for a subscriber who uses a mobile subscriber station, comprising: Home Location Register means, associated with said subscriber's home Mobile Switching Center, for maintaining a profile for said subscriber comprising a set of data that identifies said subscriber, a present count of unread messages for said subscriber, and data indicative of a present count of acknowledged unread messages for said subscriber; registration means, operable in a serving Mobile Switching Center and responsive to said subscriber initiating a registration process from a mobile subscriber station at said serving Mobile Switching Center, for transmitting a registration request message to said Home Location Register means, associated with said subscriber's home Mobile Switching Center; registration notification result means for transmitting said data indicative of a present count of unread messages for said subscriber, and said data indicative of a present count of acknowledged unread messages for said subscriber to said serving Mobile Switching Center; and message notification means, operable in a serving Mobile Switching Center and only responsive to the presence of unread messages in excess of those identified in said present count of acknowledged unread messages for said subscriber, for transmitting data to said subscriber indicative of a present count of unread messages for said subscriber.