At commands originating from gsm 07.05 for sms, At+cmgc send an sms command, 1 at+cmgc send an sms command – Siemens MC35 User Manual

Page 119

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AT Command Set

MC35_ATC_01_V03.02

Page 119 of 228

13.03.2002

5 AT commands originating from GSM 07.05 for SMS

The SMS related AT Commands are according to the GSM 07.05 specification issued by ETSI (Euro-
pean Telecommunications Standards Institute).

5.1 AT+CMGC Send an SMS command

Test command

AT+CMGC=?

Response

OK

Write command

if text mode (AT+CMGF=1):
AT+CMGC=<fo>,<ct>[,<pid>
[,<mn>[,<da>[,<toda>]]]]<CR>
text is entered <ctrl-Z/ESC>

Response

if text mode (+CMGF=1) and sending successful:
+CMGC: <mr>[,<scts>]
if sending fails:
+CMS ERROR: <err>

Write command

if PDU mode (AT+CMGF=0):
AT+CMGC=<length><CR>
PDU is given <ctrl-Z/ESC>
+CMGC=?

Response

if PDU mode (+CMGF=0) and sending successful:
+CMGC: <mr>[,<ackpdu>]
if sending fails:
+CMS ERROR: <err>

Parameter

<length>Length of PDU
<pdu> See ”AT+CMGL”
<mr>

Message reference

<fo>

depending on the command or result code: first octet of
GSM 03.40 SMS-DELIVER, SMS-SUBMIT (default 17),
SMS- STATUS-REPORT, or SMS -COMMAND (default 2)
in integer format

<ct>

GSM 03.40 TP-Command-Type in integer format (default 0)

<pid>

GSM 03.40 TP-Protocol-Identifier in integer format (default
0)

<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)

<da>

GSM 03.40 TP-Destination-Address Address-Value field in
string format; BCD numbers (or GSM default alphabet
characters) are converted into characters; type of address
given by <toda>

<scts>

GSM 03.40 TP-Service-Centre-Time-Stamp in time-string
format (refer to <dt> )

Reference

GSM 07.05

Note

• After invoking the commands CMGW, CMGS or CMGC it is nec-

essary to wait for the ">" symbol before entering text or PDU.

• At baudrates below 19200 it is recommended to use the line

termination character only (refer to +ATS3, default <CR>, pg. 25)
before entering the text/pdu. Use of the line termination charac-
ter followed by the response formating character (refer to +ATS4,
default <LF>, pg. 25) can cause problems.

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