Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 109 2012.12.10
string format (string should be included in quotation marks);
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE character
set (specified by +CSCS in TS 07.07); type of address given
by <toda>
<tooa> GSM 04.11 TP-Originating-Address Type-of-Address octet
in integer format (default refer <toda>)
<toda> GSM 04.11 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)
129 Unknown type (IDSN format number)
161 National number type (IDSN format)
145 International number type (ISDN format)
177 Network specific number (ISDN format)
<length> Integer type value (not exceed 160 bytes) indicating in the
text mode (+CMGF=1) the length of the message body
<data> (or <cdata>) in characters; or 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)
<pdu> In the case of 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 two IRA character long
hexadecimal number (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.
<index> Index of message in selected storage <mem2>
<stat> 1) If text mode: (+CMGF=1)
"REC UNREAD" Received unread messages
"REC READ" Received read messages
"STO UNSENT" Stored unsent messages
"STO SENT" Stored sent messages
2) If PDU mode: (+CMGF=0)
0 Received unread messages
1 Received read messages
2 Stored unsent messages
3 Stored sent messages
Execution
Command
AT+CMGW
Response
TA transmits SMS message (either SMS-DELIVER or SMS-SUBMIT)
from TE to memory storage <mem2>. Memory location <index> of the
stored message is returned. By default message status will be set to 'stored
unsent', but parameter <stat> allows also other status values to be given.