Specifications

Chapter 4 – Voice Commands
Multi-Tech Systems, Inc. SocketModem MT5600SMI/MT5656SMI Reference Guide (S000306B) 110
Command: +VDR Distinctive Ring
Description: This command causes the modem to enable or disable reporting of the ring
cadence information and to control the timing of the RING event code report if
ring cadence reporting is enabled.
Syntax: +VDR=<enable>, <report>
Defined Values: <enable> Decimal number corresponding to the selected option.
0 The modem will not report ring cadence information.
1 The modem will report ring cadence information as specified for the
<report> subparameter.
<report> Decimal number specifying ring cadence information report when
enabled by the <enable> subparameter.
0 The modem will produce only DROF and DRON messages. The modem will
not produce any RING event codes. The modem will report other call progress
event codes as normal.
Other The modem will produce only DROF and DRON messages. The
modem will produce a RING event code after <report>/10 seconds after the
falling edge of the ring pulse (i.e., after the DRON report).
Reporting Current or Selected Values:
Command: +VDR?
Response: <enable>,<report>
Example: 0,0 For the default setting.
Reporting Supported Range of Parameter Values:
Command: +VDR=?
Response: (<enable> range),(<report>range)
Example: (0,1),(0-6)
Result Codes: OK <enable>,<report> = (0,1),(0-6)
ERROR Otherwise, or if not in Voice Mode.