GSM CMS Error 512 when sending SMS -

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i'm programming app send sms through gsm modem serial port. i've been able send sms couple of days using messagingtoolkit library suddennly i'm not being able send sms anymore.

according logs due network error. found out "standard" error i'm facing is: cms error: 512 user abort

i found list of error codes here http://www.smssolutions.net/tutorials/gsm/gsmerrorcodes/ can't find further explanation on error.

does that's familiar gsm knows what's error about?

when i'm initializing modem error message starting configurations, might related 512 error: 2011.04.11-09.23.16: sending: at+cops=0,2 2011.04.11-09.23.17: error in command at+cops=0,2 : error

thanks!

have verified registered operator properly? can sending at+creg?

regarding at+cops error message. seems aren't sending enough parameters.

at+cops=<mode>,[<format>,<oper>[,<act>]]

are trying manually select operator rather letting modem take default operator setup sim card?


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