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the tracker to request exact address. GPS-303 will automatically switch to
tracking by LBS in GPRS mode. Accuracy of LBS (also known as Cell-id
tracking) depends on the distance to the nearest GSM Network Cell Tower or
Base Station. In urban areas this accuracy varies between 25-100 meters.
6.13. Voice Surveillance
GPS-303 is in Tracking mode by default. When voice surveillance mode is
activated, it will automatically answer incoming calls rather than replying with
its location information.
To activate the monitor mode, send SMS "password" to GPS-303. It
will reply "monitor ok" and switch to "monitor" mode.
Example:
monitor123456
Response:
monitor OK
Do not forget to switch back to tracker mode once you have finished using the
voice surveillance. When GPS-303 is in monitor mode it will stop updating its
position and it will shut the GPS module "OFF". To change back to tracker
mode use command "password"
Example:
tracker123456
Response:
tracker OK
6.14.Data logging
15.1 Auto logging
：
If GPS-303 loses GSM or GPRS signal, it can store the
