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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phonecallasitmisreadsthedialtoneasabusy
tone.Inthiscase,performthefollowing.
Use the AT Command
AddtheATX3commandforinitialization.
Alternatively,entertheATX3commandrstbefore
makeaphonecall.
Themodemwillnotcheckthedialtonebefore
makingaphonecall.
Conguring the Model in the Control Panel
Click Start > Control Panel > Hardware and
Sound.
Click on Phone and Modem Options.
In the Modemtab,selectaninstalledmodem
and click Properties.
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.
Q
When using the modem overseas
A1 Check if the country setting of the modem is set to
thecurrentcountry.
Since each country has slightly different
telecommunicationvalues,ifthelocationisnotset
tothecorrespondingcountry,themodemmayfailto
makeaphonecall.
Click Start > Control Panel > Hardware and
Sound.
Click on Phone and Modem Options.
In the Dialing Rulestab,clickEdit.
In the GeneraltaboftheEditLocationwindow,
settheCountry/Regiontoyourcurrentcountry,
enter the region code and then click the OK
button.
A2 Since the shape of the phone line connector may
differdependingonthecountryyouarein,youmay
havetobuyaphonelineconnectortomakeaphone
callfromthatcountry.