Dual SIM Mobile PhonesA dual SIM mobile phone supports two separate SIM cards. An ordinary cell phone has one SIM card slot and therefore it supports one SIM, one phone number. A phone with Dual SIM support, on the other hand, allows users to have two numbers for the same phone.
Having one handset supporting two separate numbers is best for people who prefer a clear separation between their work and personal life. But that’s not it. A Dual SIM mobile phone is handy for those who often travel between two countries. They don’t have to change their SIM card before boarding a plane. The Dual SIM phone also gives peace of mind to those who dread the thought of being out of a network. It allows one to have two numbers from two different carriers which minimizes the risk of losing the signal bar – if one carrier signal goes weak there is an option to try the other. While there are quite a few advantages of a Dual SIM mobile there are disadvantages as well. Being able to support two SIM cards, you need two card slots which require extra space in the handset. Fortunately, the SIM cards aren’t that bulky but having two cards also mean additional battery requirement. A dual SIM mobile phone battery must be of larger capacity than a normal phone. Some phones support two separate batteries one for each SIM card. While this improves talk and standby time, second battery certainly adds to the handset weight. Some Dual SIM phone support only one active SIM at a time while others let you have both the SIM’s active simultaneously. If only one SIM can be active then obviously you need to switch between the two. Often the SIM switch is accomplished via a menu option but some recent Dual SIM mobile models like Samsung Fizz C5212 offer a dedicated key for this. A dedicated key makes switching very convenient as long as you don't despise this extra key protruding out of your handset. Another hassle that a Dual SIM mobile user has to deal with is managing two separate contact lists. Newer models again make an attempt to alleviate some of this pain. Samsung Fizz lets users share the phone book between two SIMs. In India Spice 5252 Dual SIM mobile from Spice Mobiles is quite popular. It supports dual speakers and dual standby to give consumers a complete separation of the two phone modes. Other Dual SIM mobiles from spice include Spice M4580 and Spice D6666. The SIM's can support same carrier technology or two different ones. In other words, it can be a GSM-GSM phone or GSM-CDMA phone giving you best of both the worlds. Dual SIM Mobile Phones
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