Removable subscriber identification module for a mobile radio te

Details Removable subscriber identification module for a mobile radio te Removable subscriber identification module for a mobile radio te

1996-08-07

1998-05-05

Kuntz, Curtis

Telephonic communications

With check operated control

Other than coin

379113, 379114, 455406, 455407, H04M 1500, H04M 1700, H04M 1100

Patent

active

057487200

ABSTRACT:
An ability to hold a record of amount of funds prepaid for at the point of the sale is incorporated within a subscriber identity module (or "SIM") of a mobile radio terminal. This payment record will progressively decrease as services of the network are used according to tarif rate which is either preprogrammed in to the SIM or sent by the network. The SIM monitors the remaining value of the payment and, when the value of the payment reaches a predetermined minimum value, prevents further calls. This blocking of the mobile station may be effected by a specific blocking command outputted to a mobile equipment part of the mobile station, or by disabling network operation functions, such as authentication algorithms, in the SIM, or by not sendind a specific acknowledgement to the network.

REFERENCES:
patent: 4776000 (1988-10-01), Parienti
patent: 4776003 (1988-10-01), Harris
patent: 5068891 (1991-11-01), Marshall
patent: 5134717 (1992-07-01), Sogaard Rasmussen
patent: 5138650 (1992-08-01), Stahl et al.
patent: 5265155 (1993-11-01), Castro
patent: 5266782 (1993-11-01), Alanara et al.
patent: 5272747 (1993-12-01), Meads
patent: 5371493 (1994-12-01), Sharpe et al.
patent: 5509056 (1996-04-01), Ericsson
patent: 5550897 (1996-08-01), Seiderman
patent: 5557664 (1996-09-01), Burns

Affiliated with

Also associated with

Rating

Removable subscriber identification module for a mobile radio te does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Removable subscriber identification module for a mobile radio te, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable subscriber identification module for a mobile radio te will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-63802