Siemens manual TC63 AT Command Set

TC63 AT Command Set

13.8 AT+CMGW

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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.

TC63_ATC_V00.490	Page 334 of 501	5/24/05
Confidential / Draft - Do not copy