LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 135 / 231
Example
AT+CMGF=1 //Set SMS message format as text mode
OK
AT+CSCS=“GSM” //Set character set as GSM which is used by the TE
OK
AT+CMGW=“15021012496”
> Hello //Enter in text. Use <CTRL+Z> to send message or
<ESC> to quit without sending.
+CMGW: 4
OK
AT+CMSS=4 //Send the message of index 4 from memory storage.
+CMSS: 54
OK
9.12. AT+CNMA New Message Acknowledgement to UE/TE
The Write and Execution Commands confirm successful receipt of a new message (SMS-DELIVER or
SMS-STATUS-REPORT) routed directly to the TE. If the UE does not receive acknowledgement within
required time (network timeout), it sends an RP-ERROR message to the network. The UE will
automatically disable routing to the TE by setting both <mt> and <ds> values of AT+CNMI to 0.
converted to characters of the currently selected TE character set (refer to
AT+CSCS command in 3GPP TS 27.007). The type of address is given by <toda>.
<toda> Type of recipient address. 3GPP TS 24.011 TP-Recipient-Address Type-of-Address
octet in integer format.
<mr> Message reference. 3GPP TS 23.040 TP-Message-Reference in integer format.
<scts> Service center time stamp. 3GPP TS 23.040 TP-Service-Centre-Time-Stamp in
time-string format (refer to <dt>).
<ackp
du>
The format is the same as <pdu>
in case of SMS, but without 3GPP TS 24.011 SC address field and the parameter shall be bounded by double quote characters like a
normal string type parameter.
AT+CNMA New Message Acknowledgement to UE/TE
Response
+CNMA: (list of supported <n>s)
OK
Execution Command
AT+CNMA
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