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
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<toda>
3GPP TS 24.011 [6] TP-Destination-Address Type-of-Address octet in integer format (when
first character of <da> is + (IRA 43) default is 145, otherwise default is 129)
<mr>
3GPP TS 23.040 [3] TP-Message-Reference in integer format
<scts>
3GPP TS 23.040 [3] TP-Service-Centre-Time-Stamp in time-string format (refer <dt>)
<dt>
23.040 [3] TP-Discharge-Time in time-string format: “yy/MM/dd,hh:mm:ss±zz”, where
characters indicate year (two last digits), month, day, hour, minutes, seconds and time zone.
E.g. 6th of May 1994, 22:10:00 GMT+2 hours equals to “94/05/06,22:10:00+08”
<length>
integer type value indicating in PDU mode (+CMGF=0), the length of the actual TP data unit
in octets (i.e. the RP layer SMSC address octets are not counted in the length).
Note: In text mode, the maximum length of an SMS depends on the used coding scheme: It is
160 characters if the 7 bit
GSM coding scheme is used, and 140 characters according to the 8 bit GSM coding scheme.
<ackpdu>
GSM 03.40 RP-User-Data element of RP-ACK PDU; format is same as for <pdu> in case of
SMS, but without GSM 04.11 SC address field and parameter shall be enclosed in double
quote characters like a normal string type parameter
<pdu>
For SMS: GSM 04.11 SC address followed by GSM 03.40 TPDU in hexadecimal format: ME/TA
converts each octet of TP data unit into hexadecimal numbers containing two IRA characters
(e.g. octet with integer value 42 is presented to TE as two characters 2A (IRA 50 and 65)). In
the case of CBS: GSM 03.41 TPDU in hexadecimal format.
Note: SIO consumes all SMS commands and also the text entered by user. So C-AT doesnot receive any SMS
commands until SIO is fixed!
