[Ovmsdev] SIM808 not communicating

[Tom Parker]

Hi,

I've got one of the new OVMS modules with the SIM808 cellular module to 
put in a friends car and I'm having some trouble making it work.

It does get a GPS location, I haven't included that in the transcript 
below. I'm reasonably sure I'm using the SIM808 firmware instead of the 
SIM908 firmware. I'm using the SIM card that is working in my older 
module with SIM908.

I see the following on the serial port when I send it the register command:

AT+CGNSINF
+CGNSINF: 1,0,20160717082302.000,,,,0.00,0.0,0,,,,,,2,0,,,34,,

OK
AT+CREG?;+CIPSTATUS;+CCLK?;+CSQ
+CREG: 1,1

STATE: IP INITIAL

+CCLK: "04/01/01,00:07:42+48"

+CSQ: 19,0

OK

+CMT: "+<my cell phone 
number>","","16/07/17,20:23:36+48",145,4,0,0,"+<some other cell phone 
number>",145,13
REGISTER OVMS
AT+CMGS="+<my cell phone number>"
 > Your phone has been registered as the owner.
ERROR
AT+CREG?;+CIPSTATUS;+CCLK?;+CSQ
+CREG: 1,1

STATE: IP INITIAL

I went through the setup process using the diag port for feedback 
instead of the sms responses and switched on the GPRS, which didn't work 
either:

AT+CLPORT="TCP","6867"
OK
AT+CIPSTART="TCP","api.openvehicles.com","6867"
OK

CONNECT OK
AT+CIPSENDMP-C 0 QRG/M9iLIp+XEVajAB2v8t JIBS2rw2cub6ssu5QY4C7Q== xxxxxx

DATA ACCEPT:63

CLOSED
AT+CIPCLOSE
ERROR

Any thoughts? I haven't yet looked communications of my working module 
to compare. Does anyone have a firmware or tutorial that sends a fixed 
sms message to test the cellular module?