this smart device enable iphone users to be able to use another sim card with the original sim card on iphone. it'll be dual sim dual standby which mean, both numbers are working at the same time. even you're on call on one number, another call into another number will be active and you can just carry your iphone happily while enjoy using 2 sim cards and no stress of carrying different smart phones and have to control information across different devices. Live smarter and easier life with our i-Twin device.
