GSM Problem, Restart 1
A generic error counter keeps track of the number of errors we have received from the GSM Module.
If this is more than 4 within a relatively short time, it restarts the GSM and gives this error
GSM Problem, Restart 2
If it is found that the GSM module has not responded to input from the GSMC, I call a function that
tries to re-establish comms with the GSM module (sending AT a few times and see what happens). If
the comms cannot be restored by this method, it restarts the GSM and gives this error. If the comms
is effectively restored, but if it appears this happens repeatedly, (more than 10 times in the last 2
hours), the GSM is restarted, but with GSM Problem, Restart 3
GSMC voluntary restart reasons
Reason 1: An SMS was received containing "RESET GSMC", "REBOOT GSMC" or "RESTART GSMC"
Reason 2: A reset statement was executed
Reason 3: Stack overflow problem
Reason 4: The GSM module has not been in the idle state for longer than 10 minutes.
Reason 5: A new setup was received via USB
Reason 6: Sanity check failed
Reason 7: One of the internal watchdogs have tripped. there are 3 of them. Two will trip if we
have not evaluated statements for a long time. Three will trip if we have not queried the GSM
module for received SMSes in a while.
20.4. GSM Commander does not display the Airtime value
Cause 1: Incorrect operator selection
You may have chosen the incorrect operator settings under the “SETTINGS TAB” in the software
interface. If your operator is not in the list, then choose “Other” and define the airtime checking
and please call me numbers respectively (If available).
Cause 2: “Do Not Check Airtime” is enabled
You may have disabled airtime checking by ticking the box labelled “DO NOT Check Airtime” which is
located in “Supplementary Data Services” under the “SETTINGS TAB”.
Cause 3 : Reception problem
You may have bad reception in your area, preventing the unit from communicating with the
network. Please check using a regular cellular phone that there shows 1-2 bars of signal right next
to the GSM Commander. Refer to Section 5.5 (Antenna).
20.5. GSM Commander does not respond to Voice Calls
Cause 1: Caller ID on phone is disabled
Your Caller ID feature on your phone may be deactivated. Please refer to your phone's manual on
how to enable this feature.
Cause 2: Bad configuration
You may have configured the unit incorrectly. Make sure the number you are calling from is stored in
the “Numbers List” on the GSM Commander.
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