Modem User Manual

Chapter 1 – AT Commands, S-Registers and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C) 25
Command: +PQC=n Quick Connect Control
Values: n = 0, 1, 2, or 3
Default: 3
Description: Controls V.92 shortened Phase 1 and Phase 2 startup procedures (Quick
Connect). When line conditions are stable, quick connect results in shortened
connect times; however, significant fluctuation in line conditions from call to
call can cause longer connect times; thus, it may be advisable to disable
quick connect.
+PQC=0 Enables Short Phase 1 and Short Phase 2 (Quick Connect)
+PQC=1 Enables Short Phase 1
+PQC=2 Enables Short Phase 2
+PQC=3 Disables Short Phase 1 and Short Phase 2
+PQC=? Displays the allowed values
+PQC? Displays the current value
Command: +VCID=n Caller ID Selection
Values: n = 0, 1, or 2
Default: 0
Description: Enables Caller ID detection and configures the reporting and presentation of
the Caller ID data that is detected after the first ring. The reported data
includes the date and time of the call, the caller's name and number, and a
message. Set S0=2.
+VCID=0 Disables Caller ID
+VCID=1 Enables Caller ID with formatted data
+VCID=2 Enables Caller ID with unformatted data
+VCID=? Displays the allowed values
+VCID? Displays the current value
Command: +VDR=x, y Distinctive Ring Report
Values: x = 0, 1 Distinctive Ring report control. See description.
y = 0–255 Minimum ring interval in 100 ms units. See description.
Default: 0, 0
Description: Enables reporting of ring cadence information to the DTE and specifies the
minimum ring cadence that will be reported.
Report format is one line per silence period and one line per ring period. The
length of the silence period is in the form DROF=number in units of 100
ms<CR><LF>, and the length of the ring is in the form DRON=number in
units of 100 ms<CR> <LF>. The modem may produce a Ring event code
after the DRON message if enabled by the y parameter. The y parameter
must be set to a value equal to or smaller than the expected ring cadence in
order to pass the report to the DTE.
+VDR=0, N/A Disables Distinctive Ring cadence reporting.
+VDR=1, 0 Enables Distinctive Ring cadence reporting. Other call
progress result codes (including RING) are reported as normal.
+VDR=1, >0 Enables Distinctive Ring cadence reporting. RING result
code is reported after falling edge of the ring pulse (after the DRON
report).
+VDR=? Displays the allowed values.
+VDR? Displays the current value.