The mobile phones have become a must-have gadget in the past few years. With a mobile phone, one can be reached and communicated where ever he is. The mobile phones have now become more of a multimedia device which has the progress telephony features as a essential part of it. With the growth of mobile phones, the people have begun using multiple numbers that they can be reached at. These people always need dual sim phones to maintain all their numbers active at one time. Check out the below mentioned site, if you are searching for more details concerning samsung dual sim mobile.

Those who keep one mobile number of the office and one for home now do not have to carry two different cells, and can handle their work with a two SIM mobile phone. 2 SIM phones are of two types- standby double SIM phone and active twin SIM phone. In standby twin SIM phones, dual-SIM adapters were made available to use in regular mobile phones to permit them to include two SIMS and to switch from one to the other according to the requirement. The active two-SIM phones can work with two SIMS, each of which could be active at the same time. The double sim technology has taken its course over the years and it’s not simply a matter of one night. Formerly there were sim holders which was a good beginning. These dual sim holders would fit behind the battery of the mobile phone and would hold two sims at a time. Though these were not active at the same time, but you were able to use the other sim by restarting your mobile phone. The dual sim holder was though an excellent beginning but it was not the ideal solution that completely fulfilled the demands and it was improper and much more inconvenient.

Then the next step was dual sim adapter that was not a lot different from the sim holder but it provided the necessary evolution. The sim adapter works the same manner as the dual sim holder functions but the difference is that the adapter is be placed in the sim’s place holding two sims inside the sim jacket. This technology again had the negative and awkward side to it since it wasn’t automatic and the sims weren’t active at the exact same time. Just like the sim holder, you have to turn the phone off and then back on to activate the other sim. With these advancements, a few of the programmers thought of a more solution. That was to put two mobile phones in 1 casing or holding. This idea got developed and resulted in the double sim smartphone which would share the very same LCD but keep the two sims active at the exact same time. Today dual sim smartphones are very popular with the youth especially. These phones provide you the choice to maintain two numbers active at exactly the exact same time and you can even make and receive calls from two different networks at the same time. The sad news is that there are only a few manufacturers who have taken this to big stage and the more reputable companies have not yet established their campaigns.