Multi-Tech Systems GPRS (MTSMC-G) ユーザーズマニュアル
Chapter 5 – Call Control Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
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Syntax:
AT+VTD=<n>
Command
Possible responses
AT+VTD=6
Note: To define 600 ms tone duration
Note: To define 600 ms tone duration
OK
Note: Command valid
Note: Command valid
AT+VTD=0
Note: To set the default value (70 ms
Note: To set the default value (70 ms
± 5 ms)
OK
AT+VTD?
Note: Query current tone duration
Note: Query current tone duration
AT+VTD: <n>
OK
OK
AT+VTD=? AT+VTD:
<0-255>
OK
+VTDS
Description:
The product enables the user application to send DTMF tones over the GSM network. This command
enables tones to be transmitted only when there is an active call.
enables tones to be transmitted only when there is an active call.
Values: <Tone>
DTMF tone to transmit.
Tone is in {0-9, *, #, A, B, C, D}
Syntax:
Command Syntax: AT+VTS=<Tone>
Command
Possible responses
AT+VTS=A
OK
Note: Command valid
Note: Command valid
AT+VTS=11
Note: To set the default value
Note: To set the default value
+CME ERROR: 3
Note: If the <Tone> is wrong
Note: If the <Tone> is wrong
AT+VTS=4
+CME ERROR: 3
Note: If there is no communication
Note: If there is no communication
AT+VTS=”1”;+VTS=”3”;+VTS=”#”
OK
Note: Sed tone sequence 13#
OK
Note: Sed tone sequence 13#
Redial Last Telephone Number DL
Description:
This command redials the last number used in the ATD command. The last number dialed is displayed
followed by “;” for voice calls only.
followed by “;” for voice calls only.
Values:
No parameters
Syntax: ATDL
Command
Possible responses
ATDL
Note: Redial last number
Note: Redial last number
0146290800;
OK
Note: Last call was a voice call. Command valid
OK
Note: Last call was a voice call. Command valid