Experience with DualSim in Treo 750

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I have a work SIM and a private SIM and really do not want to carry two phones around. In my previous two models of regular (not-smart) phones I used one of those dualsim cards where you cut our the center of each sim and slip them into a new sim card with some extra electronics on it. You can then switch between the sims with a couple of key presses or even at automatic time intervals. eg. http://duosim.com/

OK, so I have two different makes of this type of dual-sim card and tried each one in the 750. The switching program shows up in the phones menu and it looks like it is going to work but it does not. When you try to switch to the second sim, the phone switches off and back on, but the the phone is still using the first sim.

I really want to find a way to get this to work. I have ordered one of those multi-sim card cloners (same link as above), in the hope that will work differently.

Has anyone found a solution to this ? Either a particular make of dual-sim or multi-sim cloner that works or maybe a tweak to get past the above mentioned problem ?

Originally Posted by gajsler

I have a work SIM and a private SIM and really do not want to carry two phones around. In my previous two models of regular (not-smart) phones I used one of those dualsim cards where you cut our the center of each sim and slip them into a new sim card with some extra electronics on it. You can then switch between the sims with a couple of key presses or even at automatic time intervals. eg. http://duosim.com/

OK, so I have two different makes of this type of dual-sim card and tried each one in the 750. The switching program shows up in the phones menu and it looks like it is going to work but it does not. When you try to switch to the second sim, the phone switches off and back on, but the the phone is still using the first sim.

I really want to find a way to get this to work. I have ordered one of those multi-sim card cloners (same link as above), in the hope that will work differently.

Has anyone found a solution to this ? Either a particular make of dual-sim or multi-sim cloner that works or maybe a tweak to get past the above mentioned problem ?

Hi gajsler,

I found myself being in the same situation: Want to use both office and private Sims with my Treo.
After some research I can say that it depends mostly on the combination of SIMs you are using. If you are using any UMTS/3G SIMs then a digital DualSim-application wouldn't do trick, especially if you are using a H3G-SIM (Hutchison 3G).
You will need an analog DualSim-holder for these SIMs.
I've got one from HongKong (Ghost SIM, no cutting) but it doesn't work correctly. Only the first SIM card is being used ... don't know how to get past this issue.

Seems to be tricky. Will post any additional experiences.

Greetz,
TreMax

Originally Posted by gajsler

I have a work SIM and a private SIM and really do not want to carry two phones around. In my previous two models of regular (not-smart) phones I used one of those dualsim cards where you cut our the center of each sim and slip them into a new sim card with some extra electronics on it. You can then switch between the sims with a couple of key presses or even at automatic time intervals. eg. http://duosim.com/

OK, so I have two different makes of this type of dual-sim card and tried each one in the 750. The switching program shows up in the phones menu and it looks like it is going to work but it does not. When you try to switch to the second sim, the phone switches off and back on, but the the phone is still using the first sim.

I really want to find a way to get this to work. I have ordered one of those multi-sim card cloners (same link as above), in the hope that will work differently.

Has anyone found a solution to this ? Either a particular make of dual-sim or multi-sim cloner that works or maybe a tweak to get past the above mentioned problem ?

I'm using Simore Gold 2 and it works perpect.