Patent ID: 6650891
Filing Date: 2003-11-18
Classification: H04L,H04W

Abstract:
A method for providing information to a mobile subscriber identified by a first subscriber identification card signed on to a mobile wireless network, the information concerning which ones of a plurality of further subscriber identification cards are currently also signed onto a mobile wireless network, comprising the steps of:(a) sending a mobile wireless short message to each of the plurality of further subscriber identification cards; (b) establishing delivery information by signed on ones of the plurality of further subscriber identification cards which are signed on to mobile wireless networks, wherein said delivery information is established only for signed on ones of the further subscriber identification cards that are also signed on to the Internet via WAP; (c) determining which of the plurality of further subscriber identification cards are signed onto mobile wireless networks based on the delivery information established in said step (b); and (d) transmitting information to the first subscriber identification card indicating the signed on ones of the plurality of further subscriber identification cards determined in said step (c).