Specifications

Chapter 4 – Voice Commands
Multi-Tech Systems, Inc. SocketModem MT5600SMI/MT5656SMI Reference Guide (S000306B) 111
Command: +VDT Control Tone Cadence Reporting
Description: his command is included for compatibility only and has no effect other than
returning a result code.
This command allows the modem to enable or disable reporting of the control
tone cadence information in the frequency band used by the
Ringback/Remote Ring, BUSY, and reorder/Fast Busy tones (usually in the
300 to 600 Hz range).
Syntax: +VDT=<enable>,<report>
Defined Values: <enable> Decimal number corresponding to the selected option.
0 The modem will not produce any control tone cadence report.
<report> Decimal number specifying the produced any control tone cadence
report when enabled by the <enable> subparameter.
0 The modem will produce only CPOF and CPON messages.
Other Reserved.
Reporting Current or Selected Values:
Command: +VDT?
Response: <enable>,<report>
Example: 0,0 For the default setting.
Reporting Supported Range of Parameter Values:
Command: +VDT=?
Response: (<enable> range),(<report> range)
Example: (0),(0)
Result Codes: OK <enable>,<report> = (0),(0)
ERROR Otherwise, or if not in Voice Mode.
Command: +VPR Select DTE/Modem Interface Rate (Turn Off Autobaud)
Description: This command selects the DTE/modem interface rate.
Syntax: +VPR=<rate>
Defined Values: <rate>> Decimal number corresponding to the DTE/modem interface rate
where 0 = autobaud rate determined by processing the AT command, and
1,2,3,4,8,16,24,48,96 correspond to multipliers of 2400 bps to determine the
actual rate:
0 = Autobaud
1 = 2400 bps
2 = 4800 bps
3 = 7200 bps
4 = 9600 bps
8 = 19200 bps
16 = 38400 bps
24 = 57600 bps
48 = 115200 bps
96 = 230400 bps
Reporting Current or Selected Values:
Command: +VPR?
Response: <rate>
Example: 0 For the default setting (Autobaud).
Reporting Supported Range of Parameter Values:
Command: +VPR=?
Response: (<rate> range)
Example: (0,1,2,3,4,8,16,24,48,96)
Result Codes: OK <rate> = 0,1,2,3,4,8,16,24,48,96.
ERROR Otherwise, or if not in Voice Mode.