Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 448)

Short message Commands
New Message Acknowledgement +CNMA
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WM_DEV_OAT_UGD_049 - 001 VOLUME 3 August 23, 2007
17.15 New Message Acknowledgement +CNMA
17.15.1 Description
This command enables the acknowledgement of the reception of a new message
routed directly to the TE.
• In TEXT mode, only positive acknowledgement to the network (RP-ACK) is
possible.
• In PDU mode, either positive (RP-ACK) or negative (RP-ERR) acknowledgement
to the network is possible.
Acknowledge with +CNMA is possible only if the +CSMS parameter is set to 1
(AT+CSMS=1) when a +CMT or +CDS indication is shown (see +CNMI command).
If no acknowledgement is given within the network timeout, an RP-ERR is sent to the
network, the and parameters of the +CNMI command are then reset to
zero (do not show new message indication).
17.15.2 Syntax
Depending on the mode, two syntaxes are available:
• text mode
Action command
AT+CNMA
OK
• PDU mode
Action command
AT+CNMA[=[,[ PDU is entered ]]]
OK
Read command
AT+CNMA?
OK