phone without encryption

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Dieter Spaar spaar at mirider.augusta.de
Thu Jan 21 12:12:38 UTC 2010


Hello Andreas,

On Wed, 20 Jan 2010 09:30:17 +0100, "Andreas.Eversberg" <Andreas.Eversberg at versatel.de> wrote:
>
> some stupid question: if a phone does not support any encryption, is it
> possible to use it on an official GSM network? (authentication works, of
> course) if so, what phone might it be?

I did a quick check, at least Vodafone and T-Mobile here in Germany
reject the Location Update Request with "Network Failure" (0x11) if
they get a classmark without any encryption available. The registration
works with the same phone if the classmark indicates that encryption
support is available. The test was done with a phone where I can
modify the classmark data.

Best regards,
  Dieter
-- 
Dieter Spaar, Germany                           spaar at mirider.augusta.de




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