Long range portable router

Hi,


I'm seeking for a sim based portable router that can be connected to the internet (3g/4g) and supply internet connection to around 40 devices (smartphones), in a range of around 40 meters (130 feet).



I need it for a group of travelers.



Does anyone familiar with this kind of product?



Please help.

Thanks!



I didn't find the right solution from the Internet.



References:

www.routerforums.com/portable-routing/99057-long-range-portable-router.html

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