User manual
●
1-LINE
1
2
"1-LINE"
●
●
dial-up
●
●
()
Error Correction Mode () (ECM)
ECM
53
●
DSL (Digital Subscriber Line)
DSL
●
●
/
(PBX)
(Integrated
Services Digital Network - ISDN)
/
●
DSL DSL
DSL
()
DSL
15 DSL
THWW
119