Bri Lines; Dpnss Lines (International Systems Only); Remote System Access To Enterprise Edge - Nortel Enterprise Edge 2.0 Programming Manual

330 Appendix A: Network Examples
You can program auto-answer T1 loop start, T1 E&M trunks, T1 DID, T1 ground
start trunks, PRI, and IP trunks to map to target lines to provide for attendant bypass
(calling directly to a department or individual) and line concentration (one trunk can
map onto several target lines).

BRI lines

Basic rate interface (BRI) lines give you incoming and outgoing access to an ISDN
network. ETSI ISDN BRI is the European Telecommunications Standards Institute
specification for BRI ISDN service. BRI provides 2 bearer B-channels operating at
64 kbits/s and a data D-channel which operates at 16 kbits/s. The D-channel is used
primarily to carry call information. Like loop start trunks, BRI lines can be
configured as manual-answer or auto-answer.

DPNSS lines (International systems only)

Digital Private Network Signalling System (DPNSS) lines, when installed in a
network, offer significant enhancements to Enterprise Edge networking
capabilities.
DPNSS makes it easier to support centralized network functionality within private
networks, for operators and attendants dealing with large numbers of calls. Its
routing capabilities provide more of the larger-network capabilities without the
expense of installing a new system, re-configuring all the nodes and worrying about
a lot of downtime. Most functionality over DPNSS lines is transparent once the
DPNSS is programmed into the system.
DPNSS allows a local node, acting as a terminating node, to communicate with
other PBXs over the network using E1 lines. For example, corporate offices
separated geographically can be linked over DPNSS lines to other Enterprise Edge
systems, bypassing the restrictions of the PSTNs to which they may be connected.
This allows connected Enterprise Edge systems to function like a private network.

Remote system access to Enterprise Edge

The remote access feature allows callers elsewhere on the private or the public
network to access Enterprise Edge by dialing directly without going through an
attendant. Once in the system, the remote user can use some of the system's
resources. The remote access must be enabled in programming before callers can
use it.
Enterprise Edge supports remote system access on a number of trunk types which
may require the remote caller to enter a password for direct inward system access
(DISA).
The system resources (dialing capabilities, line pool access and feature access) that
a remote user may access depends on the Class of Service (COS) assigned to them.
See COS Passwords
Guide for more details.
Enterprise Edge 2.0 Programming Operations Guide
on page 160 and the Nortel Networks Voice Programming
P0911588 Issue 01