I just want M2M data transmission, low rate is ok, latency is not a major problem.
I am talking anything from a few kB to a few mB of data per device, per day, and have no problem with latency of a few seconds, although I would rather that it not be 5 minutes of more.
I haven't looked for years. I used to use SkyWave, but they seem to have gone out of business.
I should add that the prime use case is data collection and reporting from sensors. If the data are a few minutes old, it's not a problem.
What's available today, preferably with no minimum data transfer requirement? I could google, but would prefer to hear from people who are actually using devices.
