Insider and dataminer @Za_Raczke has published a video and some details about Caterpillar's new secure smartphone.
Why do cellphones use towers instead of satellites. What are the benefits? - Quora
Cat S75 - Review - Coolsmartphone
CAT S75 Rugged Phone With a MediaTek Dimensity 930 SoC, 2-Way Satellite Messaging Support Launched - Gizmochina
Cat S75 - Review - Coolsmartphone
Motorola Defy 2 Rugged Smartphone With Two-Way Satellite Communication Messaging, Military-grade Build Launched: Price, Specifications & Availability ~ My Mobile India
The new Cat S75 is a rugged phone with 2-way messaging over satellite built in - news
How does the BSNL satellite phone work without any network? - Quora
Cat S75 Cat phones
Cat S75 - Review - Coolsmartphone
This rugged satellite-enabled Android phone looks nearly as sleek as an iPhone
Cat S75 - Review - Coolsmartphone
Cat S75 Cat phones
Caterpillar CAT S75 Rugged Smartphone: Satellite Comms Come Standard - If You Are Subscribed To A Plan - SHOUTS
CAT S75 by Bullitt - Unboxing - Coolsmartphone
Cat S75 Cat phones