Specifications

Chapter 13 – Short Message Service (SMS) Commands
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 188
13.20 AT^SCMS Send Concatenated Short
Messages
Description: Sending a concatenated message is similar to sending a “normal” message, except that
each segment of the concatenated message must be identified by the additional
parameters <seq>, <ieia> and <ref>. To send all segments of the message one by one,
the AT^SCMS write command must be executed for each segment.
The write command transmits one segment of a concatenated short message from TE to
network (SMS-SUBMIT). After invoking the write command wait for the prompt “>” and
then start to write the message. To send the message simply enter <CTRL-Z>. After the
prompt a timer will be started to observe the input.
To abort sending use <ESC>. Abortion is acknowledged with “OK”, though the message
will not be sent.
The message reference <mr> is returned to the TE on successful message delivery. The
value can be used to identify the message in a delivery status report provided as an
unsolicited result code.
Test Command Syntax: AT^SCMS=?
Response(s): OK
Write Command Syntax: Command syntax for text mode (see AT+CMGF=1):
AT^SCMS=<da>[, <toda>], <seq>, <max>, <ieia>, <ref><CR> Text can be entered
<CTRL-Z>/<ESC>
Response(s): +CMGS: <mr>[, <scts>]
OK
If sending fails: ERROR or +CMS ERROR
Notes:
• See notes provided for AT+CMGS.
• Command is only available if AT+CMGF=1.
13.21 AT^SCMW Write Concatenated Short
Messages to Memory
Description: Writing a concatenated message to the memory is similar to writing a “normal” message,
except that each segment of the concatenated message must be identified by the
additional parameters <seq>, <ieia> and <ref>.
To store all segments of the message one by one, the AT^SCMW write command must be
executed for each segment.
The write command transmits one segment of a concatenated SMS (either SMS-
DELIVER or SMS-SUBMIT) from TE to memory storage <mem2>. Memory location
<index> of the stored message is returned. Message status will be set to ‘stored unsent’
unless otherwise given in parameter <stat>.
Test Command Syntax: AT^SCMW=?
Response(s): OK
Write Command Syntax: If text mode (see AT+CMGF=1)
AT^SCMW=<oa>/<da>, [<tooa>/<toda>][, <stat>], <seq>, <max>, <ieia>, <ref><CR> Text
can be entered. <CTRL-Z>/<ESC>
Response(s): ^SCMW: <index>
OK
If writing fails: ERROR or +CMS ERROR
Notes:
• Command is only available if AT+CMGF=1.
• To send or delete a concatenated short message please use the known SMS commands, see AT+CMSS for
sending and AT+CMGD for deleting.
• See notes provided for AT+CMGW.