HC25 AT Command Set - Portech.com.tw

HC25 AT Command Set
12.8 AT+CMGW
s
12.8 AT+CMGW Write Short Messages to Memory
The execute and write commands transmit a short message (either SMS-DELIVER or SMS-SUBMIT) from TE
to memory storage . Memory location of the stored message is returned. Message status will
be set to 'stored unsent' unless otherwise given in parameter .
After invoking the execute or write command wait for the prompt ">" and then start to write the message. To save
the message simply enter .
To abort writing use . Abortion is acknowledged with "OK", though the message will not be saved.
Syntax
Test Command
AT+CMGW=
Response(s)
OK
Exec Command
If text mode (see AT+CMGF=1):
AT+CMGW
Response(s)
Text can be entered. /
+CMGW:
OK
ERROR
+CMS ERROR
Write Command
If text mode (see AT+CMGF=1):
AT+CMGW=/[, [/][, ]] Text can be entered. /
Response(s)
+CMGW:
OK
ERROR
+CMS ERROR
Write Command
If PDU mode (see AT+CMGF=0):
AT+CMGW=[, ] PDU can be entered. /
Response(s)
+CMGW:
OK
If writing fails see notes below.
Reference(s) PIN USB0-MDM USB0-APP Last
GSM 07.05 + + + -
Notes
• Note that some providers do not recognize an @ symbol used in a short message. A widely used alternative
is typing "*" as defined in GSM 03.40 (GPP TS 23.40).
• Message Length in Text Mode
The maximum length of a short message 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.
HC25_ATC_V01.200 Page 211 of 290 7/25/07
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