Chapter 7 – Voice Commands
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide
105
Reporting Supported Range of Parameter Values:
Command: +VTS=?
Response: (<freq1> range), (<freq2> range), (<dur> range)
Example: (200-3000),(200-3000),(0-255)
OK
Result Codes:
OK Valid command.
ERROR
The <string> command is invalid, or a selected frequency is out of range.
Example 1.
This example illustrates tone generation without using any null elements.
The command example is followed by a description of command execution.
AT+VTS= {!,30},1,2,[1000,1300,50],!,{*,6},[800,1300,50],9
1.
Hookflash with a duration of 300 ms.
2.
Play DTMF 1 with duration given by the +VTD command.
3.
Play DTMF 2 with duration given by the +VTD command.
4.
Play tone pair at 1 000 Hz and 1 300 Hz with a duration of 500 ms.
5.
Hookflash with duration given by the +VTD command.
6.
Play DTMF * with duration of 60 ms.
7.
Play tone pair at 800 Hz and 1300 Hz with duration of 500 ms.
8.
Play DTMF 9 with duration given by the +VTD command.
Example 2.
This example illustrates tone generation using null elements. The command
example is followed by a description of command execution.
AT+VTS=1,2,[1000,1300,50],[800],9
1.
Play DTMF 1 with duration given by the +VTD command.
2.
Play DTMF 2 with duration given by the +VTD command.
3.
Play tone pair at 1000 Hz and 1300 Hz with a duration of 500 ms.
4.
Play tone pair at 800 Hz with duration given by the +VTD command.
5.
Play DTMF 9 with duration given by the +VTD command.
Example 3.
This example illustrates tone generation using null elements and periods of
silence.
The command example is followed by a description of command execution.
AT+VTS=1,[,,50],2,[],9
1.
Play DTMF 1 with duration given by the +VTD command.
2.
Play silence with duration of 500 ms.
3.
Play DTMF 2 with duration given by the +VTD command.
4.
Play silence with duration given by the +VTD command.
5.
Play DTMF 9 with duration given by the +VTD command.
Command: +VTX
Start Modem Transmit (Playback)
Description:
This command causes the modem to start the voice transmission process.
Syntax:
+VTX
Result Codes:
CONNECT The modem accepts the command.
ERROR The modem is not connected to at least one off-hook telephone line
or one non-telephone line.
Command: +VGR
Voice Gain Receive (Record Gain)
Description:
This command causes the modem to set the gain for received voice samples.
Syntax:
+VGR=<gain> 0 (only valid number) selects automatic gain control
Reporting Current or Selected Values:
Command: +VGR?
Response: <gain>
Example: 0 For the default setting.
Reporting Supported Range of Parameter Values:
Command: +VGR=?
Response: <gain> range
Example: 0
Result Codes:
OK <gain> = 0.
ERROR Otherwise, or if not in Voice Mode.
