Re: Sheer cost
Clearly you don't actually know how much a TETRA hand held radio actually costs. Around £400 to £500 for a specially designed ( for mission critical use) IP67 rated ruggedised terminal. Also the comments on how usage and billing is calculated are completely incorrect. Until an MNO provides an apples for apples comparison in terms of service availability, resilience, security and coverage, comments about Airwaves cost are irrelevant.