Here is the sad reality. Neither Iridium nor Inmarsat are really resilient to having a global connectivity crisis spanning across continents.
Iridium is unable to do satellite-to-satellite for data/text/voice between devices on the same network. Inmarsat is capable of doing this, two handsets could have line of sight to the same satellite and the satellite will actually relay their data directly without going to Inmarsat datacenters.
However both Iridium and Inmarsat need their respective main ground stations active and operational for the authentication and account balance check of your handset.
So both would be unusable say water levels went up rapidly and we lost internet. These guys have their billing and user accounts data on AWS. Resiliency is not built in.
Here is the sad reality. Neither Iridium nor Inmarsat are really resilient to having a global connectivity crisis spanning across continents.
Iridium is unable to do satellite-to-satellite for data/text/voice between devices on the same network. Inmarsat is capable of doing this, two handsets could have line of sight to the same satellite and the satellite will actually relay their data directly without going to Inmarsat datacenters.
However both Iridium and Inmarsat need their respective main ground stations active and operational for the authentication and account balance check of your handset.
So both would be unusable say water levels went up rapidly and we lost internet. These guys have their billing and user accounts data on AWS. Resiliency is not built in.
this has been happening for years.
sorry your phone is no longer supported
Vacuum tube radios.
Excuse me,did you say you use old nokia as doomsday backup ?! XD
HAM RADIO. Ok, I know in normal times it needs some licenses to communicate with it.In less normal times however...
some FAQ on webpage of one of companies: http://www.advancedspecialties.net/ham-radio-faq.htm
Old nokia. Honestly: to have such idea for survival - to use old cell phone - may mean having 1 digit long IQ...