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I would like to ask if there is any documentation regarding the gprs coammands to open doors for FMB120. I am using https://wiki.teltonika.lt/view/Codec#Codec_12 but the example provided is related only with the getinfo command. There should be a similar hexadecimal form for lvcanopenalldoors / lvcanclosealldoors in order to open/close all doors. Did I get it right?

I would appreciate any help on this matter please. Thanks in advance.

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You can send any GPRs command via Codec12 , please read description carefully to fully understand it. 

Sending "lvcanclosealldoors"  SMS command via GPRS Codec12 ;

Server request in hexadecimal stream


Hope that helps