User's Guide
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PBX
ISDN
PBX
ISDN
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PBX
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ISDN
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:
ISDN
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3
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/ ISDN
)
“ multi-combi ”
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PBX
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PBX
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PBX
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٥-٣
1
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2
1-LINE .
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١.
1-LINE
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٥٩ ٥ ARWW