I gather that gsm operator can descramble the message and then give it to the
police if it was required so I thought I could use my own additional scrambling.
Are there any devices of that kind available ? Are they installed inside the phone
or not ? Where could I find more info ...

Can anyone please tell me if O2 payg phones are compatible with Tesco payg
sim cards which use the O2 network. Thanks in advance

I want to copy SIM card phonebooks from one SIM card to another.
(Two different phone numbers and SIM cards, but I want to them to
have the same phonebook entries.)
I know that some SIM card readers are Mac OS X compatible but

I just bought motorola V3 black and i still cannot send pictures and other
multimedia stuff via Bluetooth on any mobile phone! I can receive bluetooth
stuff.
Can someone please explain to me how to send pictures or music or any files

What is my V600i phone asking for when it says Unlock ( NET ) 2?
Is it the Network is locked on Vodafone UK, if so how do i get it to take
any SIM from another UK provider?
What is the NCK?