Dear Tudor Pop

you can use iPhone Field Test Mode to check various Network things  .if you want to play with field test mode, your iPhone must run the latest iOS 4.1. To use it, go to the Phone dialer app and punch in the following string: *3001#12345#* and press call button .
have a look at following link .

Umar Majeed

--- On Mon, 11/5/12, David Burgess <> wrote:

From: David Burgess <>
Subject: Re: [Openbts-discuss] iOS 5.1.1 warnings tested on OpenBTS
To: "Tudor Pop" <>
Date: Monday, November 5, 2012, 1:58 PM

It's not that GSM specifications are not compulsory for operators.  It's that operators helped write the specifications and gave themselves permission and technical means to do whatever they want with a handset.

On Nov 5, 2012, at 1:39 PM, Tudor Pop wrote:

So, gsm specifications are not compulsory for operators? Can we do something to make them to pay respect to that? I know that's need a local approach and not an worldwide one. Moreover, by using Osmocom SimTrace, can be reversed that security feature?

David A. Burgess, CEO
Range Networks, Inc.
San Francisco
cell +1 707 208 2622

Cellular networks made simple and affordable.

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