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Cellular forums Home > Archive > Bluetooth discussion > April 2007 > 3g Duplicate sim?
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| NONAMA 2007-02-21, 12:33 pm |
| Do you have any idea how/where I can get a 3G SIM card duplicated?
I'd like to duplicate my phone SIM to put in the car, so both cards have the
same phone number/IMEA details. I'll turn my phone off when in the car, and
switch it back on, when out of it.
Please don't remind me about Bluetooth hands free kits! The car has an
inbuilt phone, I just need to be able to accept calls using my normal number
without mucking about swapping out SIM cards all the time
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| Evan Platt 2007-02-23, 10:33 am |
| On Wed, 21 Feb 2007 18:28:53 GMT, "NONAMA" <Nt@all.com> wrote:
>Do you have any idea how/where I can get a 3G SIM card duplicated?
>
>I'd like to duplicate my phone SIM to put in the car, so both cards have the
>same phone number/IMEA details. I'll turn my phone off when in the car, and
>switch it back on, when out of it.
>
>Please don't remind me about Bluetooth hands free kits! The car has an
>inbuilt phone, I just need to be able to accept calls using my normal number
>without mucking about swapping out SIM cards all the time
I could be wrong, but I believe the handset signature / IMEI is also
sent, which means even if you duplicated the SIM IMEI, your idea
wouldn't work.
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| On 2/21/2007 12:28 PM, NONAMA wrote:
> Do you have any idea how/where I can get a 3G SIM card duplicated?
>
> I'd like to duplicate my phone SIM to put in the car, so both cards have the
> same phone number/IMEA details. I'll turn my phone off when in the car, and
> switch it back on, when out of it.
>
> Please don't remind me about Bluetooth hands free kits! The car has an
> inbuilt phone, I just need to be able to accept calls using my normal number
> without mucking about swapping out SIM cards all the time
>
>
I think your best bet would be to activate the inbuilt, then forward
your cell to the car when driving. Of course don't forget to unforward
when exiting.
It's been a few years, but if IRC the forwarding phone would ring once
when a call came in. Or was that a partial ring? Alzheimer's kickin'
in. YMMV.
--
Ted
I wasn't born in Texas but
I got back here as soon as I could
(Don't forget to take out the trash)
A metal's temper doesn't mean it is angry.
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| Jerry Cloe 2007-03-14, 10:33 pm |
| > I could be wrong, but I believe the handset signature / IMEI is also
> sent,
True... But probably irrelavent...
> which means even if you duplicated the SIM IMEI, your idea
> wouldn't work.
Why not?? I'm not encouraging duplicating a sim card, but as the OP said,
he would never have both phones on at the same time. Why do you think this
wouldn't work?
I routinely swap my sim between a couple of phones and have no problem, and
yes, my carrier can tell as soon as I power my phone on which phone I
actually have powered on (yes, the phone's IMEI is sent). If I had a
duplicate sim, as long as both phones aren't on at the same time, I'm not
sure I see a problem here, even with different IMEI's on each phone (as it
should be).
Now that being said, consider these points:
1-Its probably against your user agreement (reverse engeenering and hacking
the network come to mind)
2-Legal issues (is this considered hacking the network?)
3-If the carrier sends a change to the 1st sim, then you go to use the 2nd
sim, and it doesn't match up, the carrier could refuse to let the phone/sim
sign in
4-Some phones do not actually power off, even though they "go blank", the
receiver is still running and commands can still be sent to it from the
carrier, and yes, they can respond... So, you do have two phone with a
duplicate sim communicating with the carrier...
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