User manual
(
)
1.
()
a.
b.
2
2.
● DSL: digital subscriber line (DSL)
(DSL
ADSL /
)
● PBX:
(Private Branch Exchange - PBX)
● ISDN:
(Integrated Services Digital Network - ISDN)
● :
● :
● dial-up : dial-up
dial-up :
–
dial-up
–
dial-up
–
dial-up
● :
● :
3.
:
1-LINE
/
DSL PBX
dial-up
A:
(
)
74
5
THWW