Bittium, as everyone learned at school, is a genus of Molluscs from the family of Certhiidae, but it also the name taken by a Finnish Corporation based in Oulu.

They specialise in the development of secure communications and connectivity solutions, that includes a Tactical Wireless IP Network, Tough VOIP, Specialized Device Platform, secure VPN (SafeMove) and the subject of this review, Bittium Tough Mobile.
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https://www.techradar.com/reviews/bittium-tough-mobile-2-c