dual sim,dual sim card,dual sim mobile-www.topboom.com-shenzhen topboom Email:sales@topboom.com
Dual SIM card, just as its name implies that two SIM card in one card holder, two different numbers in one mobile phone.
With dual SIM card, you can use more cheaper number to dial out, and receiving free charge call, which reduce your high mobile fee greatly. Local card and out-of-town card or match different net system can save your phone charge. Two numbers in one mobile phone available to be chosen at any time, easy to be held and never worry about changing SIM card frequently.
Separate business call from private call, there is a clear difference between Business call and private call, using dual sim card, you will have more private space and freedom, and absolutely privacy.
It is easy to operate.The operation procedure is very easy,any user can operate it without difficult. Moreover, the most important point is that the two numbers can auto switch online in turn without re powering on/off.
Stable and security, the working elements of new SIM card is only bear the weight of the card by a channel, not the card data transfer. Thus it never happen the data losing or the data cannot be decoded. As long as it is GSM net, You can choose number at random, fashion and convenience.
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