A dual SIM phone allows users of mobile devices the ability to install two SIM (Subscriber Information Module) cards into the slots found inside the battery compartment. This is a convenient way for many mobile phone users to store additional digital information and use one cell phone unit to take calls from two different calling numbers. Using a dual SIM phone also allows consumers to operate two different cell phone networks on one unit, making it convenient for business owners to communicate with one unit instead of having to carry around two mobile devices at the same time.

Hum jaise ke liye no use..unke liye kaam ka hota h jinke pas DOSTO ki lambi list hoti h ya phir Business ke lambee calls hote h :))

One is For Personal...........another for Common ...........U See ? !! : 0

No need to carry 2 phones, Personal & Official numbers. This means more space in your HANDBAG for L'oreal, Dior, D&G & Maybelline :p

Dual SIM card phone holds two SIM cards. It also holds large amount of data. You can carry two contact numbers in one mobile. Reduces the call rates. It can store digital files. As I have to travel abroad frequently so I always carry my dual SIM mobile phone in which one is local SIM card and the other is an International SIM card of Tsim. You can also do this to be in touch with others.

Source: http://tsim.in/