Over-the-air subsidy lock resolution

Details Over-the-air subsidy lock resolution Over-the-air subsidy lock resolution

2006-08-08

2006-08-08

Ramos-Feliciano, Eliseo (Department: 2617)

Telecommunications

Radiotelephone system

Security or fraud prevention

C455S558000

Reexamination Certificate

active

07088988

ABSTRACT:
Methods (100, 200, 300) in a wireless portable communication device and wireless communication network for resolving subsidy lock by transmitting and receiving messages over-the-air are provided. Upon entering a restricted mode of operation (118, 204), the wireless portable communication device transmits a request to the wireless communication network requesting to deactivate the restricted mode of operation (120, 212). In response, the wireless portable communication device receives a message deactivating the restricted mode of operation (122, 214).

REFERENCES:
patent: 5438612 (1995-08-01), Norimatsu
patent: 5444764 (1995-08-01), Galecki
patent: 5794142 (1998-08-01), Vanttila et al.
patent: 5864757 (1999-01-01), Parker
patent: 5915225 (1999-06-01), Mills
patent: 6360092 (2002-03-01), Carrara
patent: 6799155 (2004-09-01), Lindemann et al.
patent: 6801765 (2004-10-01), Roo et al.
patent: 2001/0016486 (2001-08-01), Ko
patent: 2004/0198311 (2004-10-01), Aerrabotu et al.
Digital cellular telecommunications system (Phase 2+); Personalisation of GSM Mobile Equipment (ME); Mobile functionality specification (GSM 02.22 version 6.0.0 Release 1997), European Telecommunications Standards Institute, Jan. 1999, 23 pages.
Digital cellular telecommunications system; Unstructured Supplementary Service Data (USSD)—Stage 3 (GSM 04.90 version 5.0.1), European Telecommunications Standards Institute, May 1997, 16 pages.

Affiliated with

Also associated with

Rating

Over-the-air subsidy lock resolution does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Over-the-air subsidy lock resolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Over-the-air subsidy lock resolution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3712295