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iTegno 39XX GPRS Modem
AT Commands Guide
02000C17
•
v1.5
Confidential
All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this
document. It may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd. © 2011, 2012 iWOW
Connections Pte Ltd
60
Defined Values
<service>
0
GSM 03.40 and 03.41 (the syntax of SMS AT commands is compatible with GSM
07.05 Phase 2 version 4.7.0; Phase 2+ features which do not require new command syntax may be
supported (e.g. correct routing of messages with new Phase 2+ data coding schemes))
1
GSM 03.40 and 03.41 (the syntax of SMS AT commands is compatible with GSM
07.05 Phase 2+ version; the requirement of <service> setting 1 is mentioned under corresponding
command descriptions)
<mt>, <mo>, <bm>:
0
type not supported
1
type supported
6.4
New Message Acknowledgement to ME/TA +CNMA
Description:
This command is used is used to send an acknowledgement to the network when messages of type
“SMSDELIVER” are received correctly.
•
Execution command confirms correct reception of a new message.
•
Test command returns an OK string.
Syntax:
AT+CNMA
Command
Possible Responses
if text mode (+CMGF=1):
AT+CNMA
OK
or
+CMS ERROR: <err>
if PDU mode (+CMGF=0)
OK
or
+CMS ERROR: <err>
AT+CNMA=?
OK