Specifications

UC864-E/G AT Commands Reference Guide
80304ST10041a Rev. 3 - 18/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 138 of 259
+CMGR - Read Message
+CMGR: 2,,21
079128019291903011640A8110516529700000A709027A794E77B95C
2E
OK
AT+CMGF=1
OK
AT+CMGR=3
+CMGR: "REC
READ","[phone]",,"07/07/19,10:06:34+36"
test message/.....
OK
Reference 3GPP TS 27.005
3.5.5.3.4 New Message Acknowledgement to ME/TA - +CNMA
+CNMA – New Message Acknowledgement
(PDU Mode)
AT+CNMA [=<n>
[,<length> [<CR>
PUD is given<ctrl-
Z/ESC]]]
Execution command confirms correct reception of a new message (SMS-
DELIVER or SMS-STATUS-REPORT) which is routed directly to the TE.
Acknowledge with +CNMA is possible only if the +CSMS parameter is set to
1(+CSMS=1) when a +CMT or +CDS indication is show.
If no acknowledgement is given within the network timeout, an RP-ERROR
is sent to the network, the <mt> and <ds> parameters of the +CNMI
command are then reset to zero (do not show new message indication).
Either positive (RP-ACK) or negative (RP-ERROR) acknowledgement to the
network is possible.
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>