Earlier mobile phones were equipped to hold one Subscriber Identity Module or Sim as it is popularly known. Thus in order to access two sim’s, you had to carry two mobiles. This proved to be quite inconvenient. Today, with technological advances, the dual sim phone provides for the usage of two sim’s in a single phone. One can be used for official while the other for business purposes. By just flicking through the phone menu you can access both the cards.

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