Turn your phone into a dual SIM device with DuoSIM
Are you a double-SIM card owner that’s frustrated by swapping SIM cards in-and-out of the same phone repeatedly? How does $28 and less than three-minutes of effort sound to address that issue? That’s all it takes as evidenced by the above Red Ferret Journal video. In it, you’ll see the DuoSIM that goes inside your GSM phone. It’s basically a flexible, thin-film cable that connects two SIM cards; bear in mind you’ll need a wee bit o’ space between your phone and the battery cover for this to work. Just place one end of the DuoSIM in your SIM slot, pop your cards in and you’re good to go. Once your phone is powered on, you can switch between the two, assuming the phone OS supports it.
Here in the Philippines, there are a lot of ‘China’ mobiles which do dual SIM [both SIMs active at the same time] they are quite cheap but the build quality is not so great.
Samsung has a dual SIM phone which has both SIM cards working at the same time. I think their the 1st big manufacturer to do it. IIRC it’s called the Samsung SGH-D880 aka DuoS
The USA seems to be lagging behind in the unlocked phones ,sim cards,ect.
I guess the top providers has there thumb holding it down as it will cost them.
More about the Samsung SGH-D880 DuoS, I was able to play around with one for a bit over the weekend. It has 3MP, Bluetooth, microSD expansion but only supports tri-band GSM/GPRS/EDGE [900/1800/1900] it seemed fairly easy to use both SIMs and had a very nice screen. It’s about PhP 12,000.00 approx. USD 290.00 and that’s unlocked with no contract.