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faucamp / python-gsmmodem

Python module to control a GSM modem attached to the system: send/receive SMS messages, handle calls, etc
GNU Lesser General Public License v3.0
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Incoming SMS doesn't work on SIM800L #60

Open kkroo opened 8 years ago

kkroo commented 8 years ago

Executing the command AT+CNMI=2,1,0,2 fails because the fourth argument is not 0 or 1.

Changing to AT+CNMI=2,1,0,1 fixes it

https://www.adafruit.com/datasheets/sim800_series_at_command_manual_v1.01.pdf

kkroo commented 8 years ago

This particular command isn't commented so I am not sure what the fourth argument is and how changing it to 1 will affect backward compatibility

bennyslbs commented 7 years ago

The ETSI spec p. 41-42 says the fourth argument is s: http://www.etsi.org/deliver/etsi_ts/127000_127099/127005/13.00.00_60/ts_127005v130000p.pdf

The SIM800L supports those modes: OK at+cnmi=? +CNMI: (0-3),(0-3),(0,2),(0,1),(0,1)

OK atz OK at+cnmi? +CNMI: 2,1,0,0,0

OK

The default CNMI value (2,1,0,0,0) works fine for me, but delivery reports are not delivered. To get the delivery reports I have changed to 'AT+CNMI=2,1,0,1,0'. Unfortunately the last one gives that the status reports are delivered as a +CDS response, not a CDSI response. This gives that the format is: '+CDS ', 'PDU message'

Maybe try 'AT+CNMI=2,1,0,2,0', and if it don't work then 'AT+CNMI=2,1,0,1,0' and keep in mind that parsing status notifications isn't supported ... or the smart way: check output from at+cnmi=?