Dual SIM dual standby mobile phones.

Dual SIM mobile phones are freely available in the market at very low price. So if you are going to buy a new mobile phone, think about buying a dual SIM mobile phone. In Sri Lanka calling between networks is cheaper than calling from one network to another network operating mobile phone.

Currently there are two models of dual SIM mobile phones in the stores.

1. Dual SIM mobile phone. You have place for two SIMs in side the mobile phone. But this will allow only one SIM to be active any time and you can make call and receive only from the selected SIM while the other SIM will stay non active. If you want the other SIM to work, then you have to select the other SIM manually to work. So you will have only one working line in this model. Nokia dual SIM phone C1.
More about the Nokia C1

2. Dual SIM dual standby mobile phones. You can insert two SIM card connections in the available slots of these kinds of cell phones. Take care they are numbered as 1 and 2 and the SIM card in the number 1 will be taken as the main or number one SIM This mobile phone will allow both the SIMs to be active and both of them are ready to receive phone calls from any one of the SIM's line. Both the SIM lines can receive SMS and MMS messages with their number as 1 or 2. To make a call the SIM in the slot number 1 will only call the out going phone number. The older model dual SIM dual standby phones if you want to change the main number to the secondary number as the main one then the phone will switch off automatically and will restart again to carry the order. in the newer versions of the dual SIM dual standby phones like Nokia C 2 or Nokia C2 - 03 it is not necessary to switch off and switch on to make the secondary SIM as the main one to make calls.

More about Samsung C5212.

In Srilanka there are many cheap Chinese phones too available with Dual SIM standby mode and many other facilities. But they don't carry
any guarantee like Nokia or Samsung mobile phones. Nokia too had introduced its Dual SIM standby mobile phones recently in the Sri Lanka market at affordable price.
Micromax to had introduced dual SIM - dual Standby cell phones X226+ at Rs. 4,4990 and X228+ at Rs.5,990/-
Most of the dual SIM cell phones offer 1.3MP - 3 MP camera, expandable memory, FM radio and many more important features.
In Sri Lanka you can buy up to 5 number of SIM cards from any network at very low price or for free, if you produce your National Identity card copy to the carrier agent. Foreigners who are visiting Sri Lanka too can get SIM cards by producing their valid passport. Take care to insert the SIM as shown in side the mobile phone.

The disadvantage of the dual SIM stand by cell phone is that it needs frequent battery recharges. it can stay in the standby mode for two days. But if you make call or receive call then the battery will go down fast which will need recharge in the same day. Most of the dual SIM phones don't use common SMS saving facility. If one of the SIM card is logged off then you can't view the SMS messages which you had received from that phone number. When you want to make the secondary number to be as the primary number some mobile phones need restart while some of them do it by shaking the cell phone.

Samsung E2152 Dual SIM Standby