Draytek Vigor IPPBX 2820n, User Manual

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VigorIPPBX 2820 Series User’s Guide 113
4 4 . . 1 1 . . 6 6 T T h h e e A A d d d d e e d d I I S S D D N N T T e e l l e e p p h h o o n n y y
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The establishment through DSL Internet.
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Flexible second WAN for back-up.
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IP-based telephones are connected to LAN ports and set with ext. no. 101, 102 & 103.

The IP-based telephones (101, 102, and 103) and remote IP-based phone are registered
on the Vigor
IPPBX 2820.

The IP-based phone with ext. no. 201 is at remote site.

The Vigor IPPBX 2820 seamlessly integrate with ITSP services (allow you to register at
a SIP server).
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The remote IP-based phone with ext. 301 is registered at a SIP server.

The ISDN phones with ext. no. 601 and 602 are connected to NT-interface of the
VigorIPPBX 2820.