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Caution: Each of the Phone ports can be connected to an analog phone only. Do not
connect the phone ports to the telephone wall jack. Such connection might damage
your router.
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ISDN1/2 port is configurable as NT or TE mode. When the user configures ISDN port as NT
mode in IP PBX>>PBX System>>Phone Settings, the orange LED will light on to indicate
ISDN-NT is selected. And by using ISDN phone adapters (coming from the router package),
the user can connect several phones to the router for communication. Refer to the following
figure for reference.
Yet, if the user configures ISDN port as TE Mode in IP PBX>>PBX System>>Phone
Settings, the green LED will light on to indicate ISDN-TE is selected. Then, the port is
specified for ISDN line only. Refer to the following figure for reference.
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8
VigorIPPBX 2820 Series User's Guide
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