A system has a monitor attached to and monitoring sound and vision around
the user and using cellular telephone communications to convey monitored
information. The monitor calls a primary server which alerts a secondary
server of call receipt. The secondary server calls the monitor which
drops the call to the primary server after a predetermined time, and
remains in contact with the secondary server only if the monitor has
successfully received the call from the secondary server, thereby
preventing introduction of a false monitor. The monitor has options
alterable only when on a battery charging cradle. The monitor has amber
and red alert modes involving further servers, providing means to monitor
and record the sounds and vision. The monitor has satellite position
reporting. The system employs cell phone inter base station signal
strength interpolation to find the monitor's position. A vibration motor
silently alerts the user to calls.