remote unlock cellphone, what kind of program do they use?

[aznpimpkin1]

i always see people offer remote unlock your cell phone, just need imei# anybody have idea what kind of program or calaulator they use? i spend weeks looking for it but no answer nor clue

 

[kiran11]

HI!!!

I unlock my iphone mobile using the remote unlocking method only ........they ask me IMEI number, country and network lock also when i gave all these details........they send the unlock method......
I got the unlock process from this site Unlocking4U , it gives the easy methods to get the mobile unlocked....