HE863 family AT commands reference guide
80377ST10083a Rev.6 – 2012-11-12
Reproduction forbidden without written authorization from Telit Communications S.p.A.- All Rights Reserved. Page 122 of
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+CNMA – New Message Acknowledgement
will NOT be reset automatically.
Parameter:
<n> - Type of acknowledgement in PDU mode
0 : send RP-ACK without PDU (same as TEXT mode)
1 : send RP-ACK with optional PDU message.
2 : send RP-ERROR with optional PDU message.
<length> : Length of the PDU message.
Note : Refer to 3GPP TS 23.040 Recommendation for other PDU negative
acknowledgement codes.
(Text Mode)
AT+CNMA
Only positive acknowledgement to network (RP-ACK) is possible.
(PDU Mode)
AT+CNMA=?
Test command returns the possible range of values for the parameter <n>
(Text Mode)
AT+CNMA=?
Test command returns the OK result code.
Example
(PDU Mode)
SMS AT commands compatible with 3GPP TS 27.005 Phase 2+ version .
AT+CSMS=1
+CSMS: 1,1,1
OK
Set PDU mode.
AT+CMGF=0
OK
AT+CNMI=2,2,0,0,0
OK
Message is received from network.
+CMT: "",70
06816000585426000480980600F170110370537284…
Send positive acknowledgement to the network.
AT+CNMA=0
OK
Message is received from network.
+CMT: "",70
06816000585426000480980600F170110370537284…
Send negative acknowledgement(Unspecified error) to the network.
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