[asterisk-users] GSM SIM Cards and Digium, or GSM SIM Adaptor

[Gordon Henderson]

On Mon, 14 Jan 2008, bilal ghayyad wrote:

> Hi List;
>
> Is there an Digium cards support GSM SIM cards so we
> can fix an SIM card to be used for calls within
> mobiles as it is less rate?
>
> Or I have to use an FXS to SIM adaptor? If yes, then
> anyone advise a models and prices?

A few solutions - If you want to go down the analogue port route, then 
this:

   http://www.discountphonesystems.co.uk/acatalog/Analogue_GSM_Gateway.html

works well.

If you want to stay in the SIP/digital domain, then there are these too:

   http://www.discountphonesystems.co.uk/acatalog/IP-GSM-Gateway.html

There are PCI cards which take 1-4 SIM cards, but I've not heard much 
about them in the news recently, and last time I enquired, their price was 
somewhat substantial... (However the lack of additional wiring, mains 
plugs, etc. required may well be an advantage in their favour)

I'd presonally avoid any sort of bluetooth solution in anything resembling 
a commercial environment. Give me a bit of wire, anyday!

Cheers,

Gordon