Tc63 at command set – Siemens TC63 User Manual
Page 334
TC63 AT Command Set
13.8 AT+CMGW
s
TC63_ATC_V00.490
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• If writing fails due to timeout, then
=1 causes "+CMS ERROR: Unknown error" to be returned;
=0 causes "+CMS ERROR: timer expired" to be returned.
• 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).
• For baudrates lower than 19200 it is recommended to use the line termination character only (refer to
=
, default
<CR>
) before entering the text or PDU. Use of the line termination character followed by the
response formating character (see
, default
<LF>
) may cause problems.
• SMS-COMMANDs and SMS-STATUS-REPORTs cannot be stored in text mode.
• All characters entered behind the ">" prompt will be recognized as GSM characters. For example, "Back-
space" (ASCII character 8) does not delete a character, but will be inserted into the short message as an addi-
tional physical character. As a result, the character you wanted to delete still appears in the text, plus the GSM
code equivalent of the Backspace key.
• 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.
• The length of 8-bit data coded short messages has to be greater than 0.