Re:No-Name Companies Selling More Phones Than Samsung, LG, a...
by vlado on Saturday September 17, 2011 @03:52AM
(#3007524)
It's not about multiple users using the same device. It's about calling a contact with the card of her respective carrier in order to reduce the bill. Making a call inside the carrier's network is almost always free with the cheapest plans.
It seems more popular in developing countries, where 1 physical phone may be shared by multiple users.