Comtrol AT Commands - Manual (Page 197)

AT Commands for CX81801/CX06833/CX81300/CX06827 Modems Reference Manual
102184B Conexant 5-21
+VDT - Control Tone Cadence Reporting
This 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=,
Defined Values
Decimal number corresponding to the selected option.
0 The modem will not produce any control tone
cadence report.
Decimal number specifying the produced any control tone
cadence report when enabled by the subparameter.
0 The modem will produce only CPOF and CPON
messages.
Other Reserved.
Reporting Current or Selected Values
Command: +VDT?
Response: ,
Example: 0,0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VDT=?
Response: ( range),( range)
Example: (0),(0)
Result Codes
OK , = (0),(0)
ERROR Otherwise, or if not in Voice Mode.