Siemens TC63 User Manual download pdf (Page 334)

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101

TC63 AT Command Set

13.8 AT+CMGW

TC63_ATC_V00.490 Page 334 of 501 5/24/05

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• If writing fails due to timeout, then

AT^SM20 <CmgwMode>=1 causes "+CMS ERROR: Unknown error" to be returned;

AT^SM20 <CmgwMode>=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 ATS3=

<n>, default

<CR>) before entering the text or PDU. Use of the line termination character followed by the

response formating character (see ATS4= <n>, 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.

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