16.3. Unsolicited Result Codes of AT Commands

Unsolicited result codes are messages sent from the GSM/GPRS modem or mobile phone to provide you information about the occurrence of an event. For example, you can use the +CNMI AT command (command name in text: New Message Indications to TE) to request the GSM/GPRS modem or mobile phone to send the unsolicited result code "+CMTI" to your computer / PC every time a new SMS message is received from the SMS center.

Here are the unsolicited result codes that are related to SMS messaging:

+CDS

A GSM/GPRS modem or mobile phone uses +CDS to forward a newly received SMS status report to the computer / PC.

+CDSI

A GSM/GPRS modem or mobile phone uses +CDSI to notify the computer / PC that a new SMS status report has been received and the memory location where it is stored.

+CMT

A GSM/GPRS modem or mobile phone uses +CMT to forward a newly received SMS message to the computer / PC.

+CMTI

A GSM/GPRS modem or mobile phone uses +CMTI to notify the computer / PC that a new SMS message has been received and the memory location where it is stored.

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