[Community] dual-sim modems?

Dr. H. Nikolaus Schaller hns at goldelico.com
Wed Feb 26 15:54:27 CET 2014

Am 26.02.2014 um 15:32 schrieb Ryan de Laplante (personal):

> I've always thought dual-sim would be useful to combine work and
> personal phones into one.

Yes, I agree.

What potential developers of such dual-sim devices have to consider:
a) there must be room to store a second SIM tray (this influences the case design)
b) the modem must be capable to autonomously control and switch between two SIMs to read their IMEI etc. *and* register on two different networks.

In the Neo900 and GTA04 designs we have no space for a) and the modems used don't have b) in their firmware [as far as we know - and before someone suggests to ask the suppliers: we have already done but did not get an answer on this topic].

> On 26/02/14 05:32 AM, mx4812 at arcor.de wrote:
>> Hello,
>> I have searched if there was some discussion about the idea of having
>> a dual-sim modem in the upcoming gta04 or neo900 devices, but have
>> not found anything.
>> I think the possiblilty to have two sims registered to the network, and 
>> for example to use them incoming/outgoing calls, can provide
>> a great value to the users, and would make quite strong selling point.
>> If this feature is possible somehow and could be squeezed in (even if only the
>> modem may support dual reqistration, or even just outgoing call routing, and 
>> a sim adapter would be required to fit two chips from cut sim cards into 
>> the phone), it would be great and really usefull.
>> Is dual sim functionality on anybodies interest radar?
>> Regards,


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