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N412 Administrator Manual
35
BRI Trunks
Basic Rate Interface (BRI, 2B+D, 2B1D) is an Integrated Services Digital Network
(ISDN) configuration intended primarily for use in subscriber lines similar to those that
have long been used for plain old telephone service. The BRI configuration provides 2
bearer channels (B channels) at 64 kbit/s each and 1 data channel (D channel) at 16
kbit/s. The B channels are used for voice or user data, and the D channel is used for
any combination of data, control/signalling, and X.25 packet networking.
To extend BRI trunks on N412, please install B2 module on N412, and connect the
BRI port to the BRI provider with a RJ45-RJ11 cable.
Select a BRI trunk and click
to edit it.
1) General Settings
Table 6-7 BRI trunk-General Settings
General
Trunk Name
A unique label used to identify this trunk when listed in
outbound rules, incoming rules, etc. E.g. ―BriTrunk1‖.
Signaling
Set the Signaling method.
BRI-PTP
: peer-to-peer signaling.
BRI-PTMP
: peer-to-multiple-peer signaling.
Switch Side
User
: N412 connects to the BRI provider as user side.
Network
: N412 connects to the BRI provider as network
side.
Switch Type
Set switch type.
national
: national ISDN type2 (common in the US).
ni1
: national ISDN type 1.
dms100
: Nortel DMS100.
4ess
: AT&T 4ESS.
5ess
: Lucent 5ESS.
euroisdn
: EuroISDN.
qsig
: D-channel signaling protocol at Q reference point
for PBX networking.
2) Advanced Options
Table 6-8 BRI trunk-Advanced Options
Advanced Options
Overlap Dial
Define whether N412 can dial this switch using overlap digits or
not. If you need Direct Dial-in (DDI; in German "Durchwahl")
you should change this to yes, then N412 will wait after the last
digit it receives.
Reset Interval
Set the time in seconds between restart of unused channels.
Some PBXs don't like channel restarts. So set the interval to a