User Manual (Vista/Windows7)

134
Q
When you are unable to make a call when using
a switchboard
A
In general, the dial tone of a switchboard or a digital
phone switching system is not continuous unlike
that of a PSTN line. Therefore, the modem may not
make a call because it may recognize the dial tone
as a busy signal. In this case, perform either of the
following:
 Using AT command
A
dd ATX3 command for initialization.
Alternatively, enter ATX3 command rst before make
a
phone call.
The modem will not check the dial tone before
making a phone call.
 Conguring the Modem in the Control Panel
 ► For Windows 7
Click Start and type "Phone" in the search Box.
► For Windows Vista
Click
Start > Control Panel > Hardware and
Sound.
 Click on Phone and Modem Options.
 In the Modem tab, select an installed modem
and click Properties.
 ► For Windows 7
In the Modem tab of the Modem Properties
window, uncheck "wait for dial tone before
dialing" option.
► For Windows Vista
In
the Modem tab of the Modem Properties
window, unselect the Make a phone call after
waiting for a dial tone option.
 When the settings are complete, click the OK
button.
If you cannot make a phone call starting with
a 0, such as 01432, 01421, 01433, etc., this is
because the private switching system is set to block
long distance calls. Ask your switching system
administrator.