Intel 537EX - Manual (Page 73)

536EX Chipset Developer’s Manual 73
Intel Confidential
IS-101 Voice Mode AT Commands
+VDR=m see ‘m’
Distinctive Ring Selection: This command contains two parameters. The first selects whether the
modem reports distinctive ring cadence information. The second parameter controls the timing of the
RING event code report.
m=,
Defaults = 0, 0
Ring Reporting: The DCE reports the length of the ring period.
Range: = 0–255 (enables/disables distinctive ring reporting in the form DROF=units of 0.1 seconds>)
Time Ring Reporting: The DCE reports the silence period’s length. The DCE may produce
a RING event code after the DRON message if enabled by the parameter. The
parameter should be set to a value larger than the expected off-times within a single pattern so the
RING even reports are issued only during the off-times between the complex patterns.
Range: = 0–255 (reporting type in the form DROF=units of 0.1 seconds>)
Regardless of its setting, the +VDR command can be disabled by the +VEM command.
Table 25. Voice Mode Command Descriptions (Continued)
Command Default Description
NOTE: An asterisk (*) denotes the factory-default setting.
Function
0 – Distinctive ring disabled
1 0
The modem reports DROF and DRON messages but does not report RING
messages
1 non-0 The modem reports DROF, DRON and RING messages
2–255 – Reserved