Specifications

AT command set for XX Siemens mobile phones and modems
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Document No.: A30880-A10-A001-XX-
D376
Revision: Master R75
Revision Date: 29. September, 2004
68
Response:
OK/ERROR
Parameter:
<duration
>
See Test command
AT+VTS
AT+VTS Send a DTMF tone
Test command Response:
AT+VTS=?
(list of supported <dtmf
>s), (list of supported <duration>s)
OK/ERROR/+CME ERROR
Parameter:
<dtmf
> 0-9,
#,*,
A-D
exactly one character of the list
<duration
> 1 .. 255
Duration of tone (in tenths of seconds)
Write command
AT+VTS=<dtmf>[,<duration>]
Or
AT+VTS=<dtmf-string
>
Response:
OK/ERROR/+CME ERROR
Parameter:
<dtmf
>
character from the list, see Test command
<dtmf-string
>
max. 29 characters in quotation marks (”...”)
(no duration cannot be specified)
2.4 General commands according to 3GPP TS 27.005
3GPP TS 27.005 commands are used for operating the SMS functions of the GSM mobile phone. GSM module
mobiles support the SMS PDU mode.
AT+CMGC
AT+CMGC Send an SMS command
Test command Response:
AT+CMGC=?
OK/ERROR/+CME ERROR
Write command
If PDU mode (+CMGF=0)
AT+CMGC=<length
><CR>
PDU is given:
<ctrl-Z/ESC>
Response:
If sending is successful:
+CMGC: <mr
>
If sending is not successful:
+CMS ERROR
Parameter:
<length
>
Length of PDU
<pdu
>
See AT+CMGL command
<mr
>
Message reference
<ackpdu> RP-ACK PDU according to [3]