SIM508 sending SMS error

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moraali sivalingam
New member
Username: Moraali

Post Number: 3
Registered: 12-2008
Posted on Wednesday, December 31, 2008 - 04:12 am:   

I am using GSM/GPS SIM508. When I use the AT command I attained two errors. How can I solve this?
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 7718
Registered: 10-2002
Posted on Wednesday, December 31, 2008 - 03:17 pm:   

See http://blog.nowsms.com/2008/07/gsm-modem-cms-error-code-list.html for a list of GSM modem error codes.

CMS ERROR 193 indicates "No SC Subscription". That means you are trying to send SMS messages, but you do not have a subscription that allows you to send SMS messages.

Put the SIM card into a phone and try there. I suspect you'll see that you can send any text messages using the SIM in a phone either.

If you can send messages with the SIM in the phone, the modem you are using might require you to explicitly set the SMSC address using the AT+CSCA command.

-bn