Installation guide

Trunk groups 27-4
Chapter 27: Understanding Wave Trunks
Wave Global Administrator Guide
In addition, the T-1 card incorporates a T-1/DS0 Multiplexor, also known as the DS0
Digital Access Cross-Connect Switch, that provides the capability—in software and
without additional hardware—to individually cross-connect DS0s (a single channel)
from one digital interface to another, allowing DS0s to pass through the Wave without
terminating on an internal device. To do this, you assign the T-1/DS0 Mux connection to
the channels you want to cross-connect to another T-1 interface. You connect one of your
T-1 ports to your incoming T-1 connection and another T-1 port to the external device (for
example, another router).
For DS0 Mux configuration procedures, see “Configuring digital trunks and channels” on
page 5-21.
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ISDN PRI. Transports data at 1.544 Megabits per second (Mbps). The Wave Server
supports ISDN PRI on any or all of the digital trunks on T-1. This includes support for
Network Service Facility (NSF) codes for least cost routing on a call-by-call basis over
an ISDN PRI trunk (if your trunk supports multiple services). Each of the 24 PRI bearer
channels (B-channels) can support a single voice or data call.
You can specify the ISDN Type of Number (TON) and Numbering Plan Identifier (NPI)
to enable connections to operate on different ISDN networks. When using ISDN PRI for
a connection, you reduce the available channels by one per circuit.
For ISDN configuration procedures, see “Configuring digital channels for ISDN” on
page 5-34.
Trunk groups
By assigning analog or digital trunks to trunk groups, you enable the voice paths to the PBX
subsystems of Wave. By assigning digital channels to data connections, you enable data paths
to the network subsystems of Wave.
Before you work with analog or digital trunks on Wave, you might need to configure groupings
of them. For trunk group configuration procedures, see “About creating new trunk groups” on
page 5-2.
Release 2.0
September 2010