Mobile Phones with dual SIM cards provide two different numbers on the same phone – one could be for private friends and family while the other number could be for everyone else.
Tata Teleservices have launched a new dual SIM card phone in India called the Samsung Duo. The phone has two slots for inserting SIM cards unlike the regular mobile phone which are limited to one SIM card.
You can also use a GSM and CDMA number with Samsung Duo or 2 GSM numbers or 2 CDMA numbers – pretty useful stuff.
Samsung Duo costs ~ INR 12k with global roaming and has a 1.3MP camera, Bluetooth and an MP3 player.
Reliance Infocom is also expected to introduce dual SIM phones that will run on GSM and CDMA platform simultaneously.