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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
72
Defined Values
Set command selects the procedure, how receiving of new messages from the network is indicated to the TE
when TE is active, e.g. DTR signal is ON. If TE is inactive (e.g. DTR signal is OFF), message receiving should be
done as specified in 3GPP TS 23.038 [2].
Note: When DTR signal is not available or the state of the signal is ignored (V.25ter command &D0), reliable
message transfer can be assured by using +CNMA acknowledgement procedure.
<mode>
controls the processing of unsolicited result codes specified within this command, <mt> sets
the result code indication routing for SMS-DELIVERs, <bm> for CBMs and <ds> for SMS-
STATUS-REPORTs. <bfr> defines the handling method for buffered result codes when
<mode> 1, 2 or 3 is enabled. If ME does not support requested item (although TA does), final
result code +CMS ERROR: <err> is returned. See chapter Message Service Failure Result Code
for a list of <err> values.
Test command gives the settings supported by the TA as compound values.
Note: Command Select Message Service +CSMS should be used to detect ME support of
mobile terminated SMs and CBMs, and to define whether a message routed directly to TE
should be acknowledged or not (refer cCNMA).
<mode>
(refer figure 2; Note: The buffering mechanism may as well be located in the ME; the setting
affects only to unsolicited result codes specified within this command):
0
Buffer unsolicited result codes in the TA. If TA result code buffer is full, indications can be
buffered in some other place or the oldest indications may be discarded and replaced with
the new received indications.
1
Discard indication and reject new received message unsolicited result codes when TA-TE link
is reserved
(e.g. in on-line data mode). Otherwise forward them directly to the TE.
2
Buffer unsolicited result codes in the TA when TA-TE link is reserved (e.g. in on-line data
mode) and flush them to the TE after reservation. Otherwise forward them directly to the TE.
3
Forward unsolicited result codes directly to the TE. TA-TE link specific inband technique used
to embed result codes and data when TA is in on-line data mode.
Note: <mode> Value 3 is not supported as platform does not support the same.
Note: It is possible that ME/TA result code buffer is in volatile memory. In this case messages
may get lost if the power of ME/TA is switched off before codes are sent to TE. Thus, it is not
recommended to use direct message routing (<mt>=2 or 3, <bm>=2 or 3, or <ds>=1) with
<mode> value 0 or 2.