About Dual SIM and Multi SIM Phones Dual SIM and multi SIM phones are relatively new kinds of cell phones. These phones will often have two or more slots for inserting two different SIM cards. This permits the consumer to avail mobile connectivity services from more than one company. One can even insert SIMs of countless different within the slots that are available in the phone. This permits the user to carry one phone, rather than juggling between two handsets.
dual sim mobiltelefonIf you are somebody that travels a great deal, or possess a cell phone account which restricts cheap calls only to a little designated area, you are able to reduce your roaming charges by buying another SIM aside from the the one that you mostly use. Moreover, a chance to have several active numbers of various frequencies simultaneously implies that you'll be always inside the range of coverage, regardless of where you decide to go.
Before you purchase a double SIM or multi SIM phone, there are certain stuff that you have to keep in mind. Akin to all high-tech gadgets, the technology involved with these kinds of cell phones, is constantly undergoing an upgrade. Early dual SIM phones where mostly gimmicky and the double SIM card holders allowed using the SIMs only one at any given time. Adapters were necessary to cut the SIM cards so they fit into the credit card slot. This often led people to ruin their SIM cards.
The most recent dual SIM or multi SIM handsets don't have these problems. Today, you can purchase a truly handy cell phone which has multiple Sim slots. You can switch between the two cards by pressing a simple button which is conveniently on the body from the phone. These new models enable you to keep all your cards active at any given point of time or turn off a couple of according to your convenience. When you shop for your multi SIM or double SIM phone, look for the terms DSDS i.e. dual SIM dual standby or MSMS i.e. multi SIM multi standby.
olcso mobiltelefonokAll multi SIM and double SIM mobile phones are multi-band. This means that these to support several frequencies, typically with every SIM card working on another range. For example, a quad-band mobile phone supports networks that can operate on all GSM frequencies that are used around the globe i.e. 1900/1800/900/850 MHz. thus, this type of mobile phone is ideal for international travelers.
Tri-band and dual-band phones can also be found as regards dual SIM phones. If you remain in Canada or the US, makes sure that the handset you intend to purchase supports your network's frequency i.e. 1900 or 850 MHz. Several tri-SIM cell phones have one CDMA slot and 2 GSM slots for that ultimate functionality and flexibility.
Chinese manufacturers were the first one to introduce dual SIM and multi SIM phones towards the market. The phone attained immense popularity and shortly the more acclaimed cell phone manufacturers brought out their own handsets to cash in on the increasing demand for double SIM and multi SIM phones.