Isdn Phone Adapter Installation - Draytek Vigor2820 Series User Manual

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.
1 . 4 I S D N P h o
1 . 4 I S D N P h o
Such information is provided for Vigor2820 S models (e.g., Vigor2820VS).
Phone S0 is always fixed to connect ISDN phone. However, ISDN /Phone S0 is configurable
as NT or TE mode. When the user configures ISDN /Phone S0 as NT mode in VoIP>> 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
Vigor2820VS for communication. Refer to the following figure for reference.
Yet, if the user configures ISDN / Phone S0 as TE Mode in VoIP>> 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.
Vigor2820 Series User's Guide
n e A d a p t e r I n
n e A d a p t e r I n
s t a l l a t i o n
s t a l l a t i o n
16