The carrier is probably the most important part of this. One can choose to use a dumbphone with limited system services, hell, an IOT board with a speaker and a microphone attached. It is comparatively easy to silence local software.
However, one can not stop the cell carrier from gathering e911 “required” telemetry (GPS geolocation and cell site location ranging data) except to keep the modem turned off. (If one believes “off” is off.)
There used to be telecom regulations around privacy way back when, but those days are apparently long behind.
The carrier is probably the most important part of this. One can choose to use a dumbphone with limited system services, hell, an IOT board with a speaker and a microphone attached. It is comparatively easy to silence local software.
However, one can not stop the cell carrier from gathering e911 “required” telemetry (GPS geolocation and cell site location ranging data) except to keep the modem turned off. (If one believes “off” is off.)
There used to be telecom regulations around privacy way back when, but those days are apparently long behind.