TELECOM Digest OnLine - Sorted: Re: Cell Phone Extenders?

Re: Cell Phone Extenders?

John Levine (
19 Jan 2006 15:14:47 -0000

>> An interesting theory, although clearly nonsensical with GSM phones.

> Not theory. Cloning other phones onto your account is theft of
> service. Besides, the cell system keeps track of not only the phone
> number, but also the ESN of the phone. The ESN CANNOT be changed
> without destroying the phone.

Who said anything about cloning phones? I said GSM, you put your SIM
into any phone you want and it works. The carrier doesn't care.

In my case, I have a GAIT multi-mode AMPS/TDMA/GSM phone, so Cingular
knows what my ESN is, but if I stick my SIM into another GSM phone, it
works fine. Indeed, they tell me to do that if I want to roam in a
900/1800 country.



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