After some research, it seems the network operators don't like this kind of practice, and also it's just not that simple. Newer 3G sim cards have been reported to be difficult to clone due to the Ki number being well hidden. Apparently, the user/software only has a few attempts to find the correct Ki number, after which, if the attempts are unsuccessful, the sim card becomes unusable.
Can anyone shed any light on this? I've been having trouble finding any up to-date information contrary to what I have read, which seems to have been written a while ago, and could well be (I'm hoping) out-of-date.
I saw this on the net and wondered if it would do the job
I've read in a few posts by some people over the past few weeks that they have multiple cards with the same phone number, or multiple numbers on one card, which is potentially what this device/software offers.
Any info will be much appreciated. I'm sure there's somebody who is more clued up than me on this subject and has hopefully been successful.
Thanks in advance!