Lancom 1722 VOIP, Руководство пользователя

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LANCOM 1722 VoIP – LANCOM 1724 VoIP
Chapter 1: Introduction
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EN
for the upstream PBX decide whether or not a "0" must be dialed for outside
line access for the connected ISDN and SIP subscribers.
Dialing various numbering areas
When dialing other parties, the following numbering areas are available for
use:
Internal numbers are comparable to the extension line numbers for tra-
ditional PBX systems ("extension"). Subscribers can reach each other
directly using these internal numbers without having to go through a pub-
lic telephone network.
The internal numbers must be unique for all subscribers within the private
telephone network, this also includes any other PBX systems that may be
connected!
The internal subscribers can be reached by simply dialing the internal
number without a "0" preceding it.

Depending on the settings for automatic outside line access (’Auto-
matic outside line access’
→
page 29), a special preceding dialing
signal may be required.
Via local telephone numbers you can reach external parties who are in
the same local telephone network as the LANCOM VoIP Router, i.e. users
with the same area code as the public line for the LANCOM VoIP Router.
In decentralized locations that extend beyond city or state boundaries, the
physical location of the device is decisive, even if a central PBX is located
at a different location. Therefore, for a LANCOM VoIP Router in London,
all telephone subscribers in the local telephone network for London can
Upstream ISDN PBX
Internet
ISDN
ISDN subscribers
SIP subscribers
LANCOM VoIP Router without
ISDN NT interface:
Automatic outside line access ena-
bled