Seen this??
Its another box, but its cheap
also can be run off 12V or a battery
Optimizer Satellite Phone Wifi Hotspot Firewall and Router - Wxa-102 - 9555 Phone Accessories - Iridium
"Compatible Satellite Phones and Terminals:
Inmarsat BGAN
Inmarsat FleetBroadband
Inmarsat Fleet Phones
Iridium 9555, Extreme (9575) USB Phones
Iridium OpenPort
Inmarsat IsatPhone Pro
Iridium 9500, 9505, 9505a, 9522 serial port phones (requires USB to Serial Adapter)
Globalstar GSP-1600, GSP-1700, GSP-2900
Thuraya IP
VSAT
OR, any LAN/WAN based Internet connection "
Never used it (or even heard of it before) so can't comment on it
I see what you mean about the cost of kit from Iridium.
Ironic when you consider that was intended as a low cost solution...