7-13
Chapter 7. Recovering the Computer
Modem Related
Q1 I cannot hear the modem sound.
A1 Check that the telephone line is properly connected to the modem.
A2 Check that the modem driver is installed properly.
1. Click
Start > Control Panel > Performance and Maintenance >
System
.
2. Select
Hardware
tab
> Device Manager > Modems
in the
System
Properties
window, and check if there is a yellow exclamation mark on the
installed modem icon. If there is, delete the modem device driver and reinstall
the driver, because the yellow exclamation mark represents a not properly
installed driver.
3. If there is no yellow exclamation mark, double-click the installed modem, and
click
Diagnostics
tab
> Query Modem
in the
Modem Properties
window to diagnose the modem.
No message in either of Command and Response in the
Diagnostics
tab
means that the modem is not operating properly.
Diagnose the modem again after restarting the system or reinstalling the driver.
(You have to exit all programs using modem in the advance of diagnostics of the
modem).
A3 Although I can make a connection with the modem, I cannot hear the dial tone
and modem connection sound. In this case check the following list:
1. Click
Start > All Programs > Accessories > Entertainment > Volume
Control
.
2. Clear
the
Mute
check box in the Telephone Line item.
(Depending on the sound driver, it may be displayed as another name such as
Modem, Phone, Mono. If there is no corresponding item, click
Options >
Properties > Volume Control
, select ‘Playback’, and select the ‘Telephone
Line’ under the ‘
Display the following volume controls
’. Click
OK
.)
Q2 I cannot make a call using an extension line.
A In general, the dial tone of a PABX or a digital phone switching system is not a
continuous one, unlike that of trunk line.
Therefore, the modem may not make a call because the modem mistakes the dial
tone from a PABX or a digital phone switching system as a busy tone.
In this case, complete the following procedures.
Using an AT command.
As an initialization command, use the command, ATX3.
