INSYS 336 4.1, Operating Manual

Page: 64 / 100

AT
Command Set INSYS Modem 336/56k 4.1 (UL)
Command Description
AT\Q<n>
Quiet Call
Quiet Call will switch of the phone connected in series at the first ring. In connection with
the selective call answer (
AT&N<n>
), calls from a previously defined phone number can
take place without a ring of the phone connected in series. If the phone number is not
detected by the modem, the phone is switched on again after the first ring.
AT\Q0
Switches Quiet Call off (default)
AT\Q1
Activates Quiet Call. The phone connected in series is disconnected,
as soon as an entire ring signal cycle is detected on the line.
AT\Q2
Activates Quiet Call. The phone connected in series is disconnected,
as soon as a ring signal flank is detected on the line.
The selection between the settings \Q1 or \Q2 depends on the circumstances at the
phone connection. For \Q2 in connection with pulse dialing, phones that are connected in
parallel will sometimes result in an erroneous detection of a ring signal flank. When us-
ing pulse dialing at the phones connected in series,
AT\Q1
must be used.
AT&R<n>
RTS/ CTS behavior
This command determines how the modem treats the RTS/CTS (CT105/CT106) data flow
control lines.
(See also command
AT&K
).
AT&R0
CTS behavior complies with V.25bis. CTS is deactivated during the connec-
tion setup after recognition of the response or ringing tones and will only
be activated after the connection is set up. During the controlled half du-
plex operation (
AT&K8
) CTS is active, if the modem sends data at the se-
rial interface. When data is received at the serial interface, CTS is inactive.
AT&R1
CTS only switches to OFF when this is required by the data flow control.
During the controlled half duplex operation (
AT&K8
) CTS is inactive, if the
modem sends data at the serial interface. When data is received at the
serial interface, CTS is active.
(default)
AT*R<n>
Switches the remote control on and off
AT*R0
Switches the remote control OFF.
AT*R1
Switches the remote control ON (default).
ATS<n>
Read/write of the S registry
Depending on the country settings, the S registries may only be changed within certain
limits. The modem still reports
OK
although the value has not changed as specified. We
recommend checking the results after each write attempt, using the
ATS<n>?
com-
mand.
ATS<n>=<x>
Sets the S registry n to the value x.
ATS<n>?
Shows the value of the S registry
n.
64 July 06