Samsung NP-R430I Trouble Shooting Guide Ver.2.0 (Spanish) - Page 134

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QWhen 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 Add ATX3 command for initialization. Alternatively, enter ATX3 command first before make a phone call. The modem will not check the dial tone before making a phone call.  Configuring 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. 134

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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
Add ATX3 command for initialization.
Alternatively, enter ATX3 command first before make
a phone call.
The modem will not check the dial tone before
making a phone call.
Configuring 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 0143±, 014±1, 01433, etc., this is
because the private switching system is set to block
long distance calls. Ask your switching system
administrator.