Every SIM has it's unique IMSI and Ki (these are tied together), but they
may have assigned the same MSISDN by HLR. If there are more cards connected,
the network will route the call to the card with higher priority or to the
one, which did the last location area update. The process itself is a bit
more complicated, but there are a lots of descriptions of this process over
the internet. I never had a need to look at this problem of having two SIMs
with the same phone number, but this is the only systematic solution I could
think of now.
I don't even understand how it's possible to register to the network with a
different Ki!
2007/11/29, KISS Attila <[EMAIL PROTECTED]>:
>
>
> AFAIK, the duplicate SIM cards are not equivalent cards. They have
> different
> IMSI and different Ki code. Only the network's configuration bind them
to
> the same phone number. Theoretically you could have a dozen of them, but
> usually only one is allowed to receive the calls.
> This should clarify the questions regarding chances of hacking the Ki
code
> by obtaining multiple cards to have more chances before lockout. (Those
> limits are so low on som SIMs, that they died after 2-3 years in hands
> some
> of daily traveling business mans:-) ) It also explains that the operator
> will always be able to trace every single SIM card by IMSI, if they
want.
> So, don't be too happy with second SIM cards. They really help you only
> when
> you have a second outdoor phone and don't like to swap the SIM every
time
> you go to mountains..
> Atlasz
>
> >
> >SIM cards are smartcards. They can not be copied by design!
> >
> >The only way to duplicate a SIM is to hack it. No idea if and how far
> that
> >is possible. But it is certainly not legal.
> >
> >
> >Ask your provider for a duplicate SIM. Many providers will give you
> >multiple identical SIM if you need them. (At least here in germany)
> >
> >
> >Cailan Halliday wrote:
> >>I just had an idea that I got from a couple of devices, how about a
> >>virtual SIM card? Is it possible to make an ISO of a SIM card and
store
> it
> >>in the Neo to be, for lack of a better word, booted from? I've seen
> >>devices like these:
> >> http://www.thetravelinsider.com/phones/simsaver.htm
> >>http://www.thinkgeek.com/gadgets/cellphone/9ca8/
> >> This could replace the idea of having multiple SIM card slots, this
> way
> >>you can have multiple carriers on your phone without the need for more
> >>slots.
> >> -Cailan
> >>
> >>
>
>>------------------------------------------------------------------------
> >>
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> _________________________________________________________________
> Potrebujete vediet, ake pocasie bude na Slovensku aj vo svete.
> http://www.msn.sk/weather
>
>
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>
--
Sébastien LORQUET - ì´ì¸ì (李ä¸æ¦®)
Ingénieur ENSPG 2006 / ENSIMAG-ASI 2007
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MSN Pocasie vam umozni naplanovat si den a tyzden..
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