User's Guide
٣.
DSL
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٤.
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:
PBX
ISDN
PBX
ISDN
:
●
PBX
/
ISDN
.
/
.
:
ISDN
.
3
.
/ ISDN
)
“ multi-combi ”
.(
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PBX
"
."
:
PBX
"
" .
.
PBX
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●
PBX
.
●
/
.
.
:
)
(
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-٣
1
2
1-LINE.
/
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ARWW
)
(
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