Aastra Telecom 800 manual Bundles, Routes, Example of a PBX network with bundles

PBX Networking Configuration

9.2Configuration

The possible configurations described below can be set up in the Web console using the Telephony: Trunks menu.

9.2.1 Bundles

A bundle is a group of lines of the same type and direction. A line can only be assigned to one bundle.

Network operator

A

B

PBX 1

C

PBX 2

PBX 3

E

D

Bundle

SIP trunk

Q.SIG-IP connection

Example of a PBX network with bundles

In the above example, the following bundles are configured for PBX 1:

■Two SIP trunks to the network operator which are assigned to the “A” bundle.

■Two Q.SIG-IP connections to PBX 2 which are assigned to the “C” bundle.

■One QSIG-IP connection to PBX 3 which is assigned to the “E” bundle.

Note: A line or a bundle cannot be seized directly. It is al- ways performed indirectly via a route.

9.2.2 Routes

A route is a group of bundles enabling a connection in one direction. If the first bundle of a route is fully utilized, the next bundle is seized (“bundle overflow”). One bundle can also be used for different routes.

In the above example, a route set up for PBX 1 allows a connection to PBX 2. Bundle “C,” “E” and “A” are assigned to this route. If a user connected to PBX 1 wants to reach a party in PBX 2, lines will be seized in the following order:

■PBX 1 first searches for a free channel in the “C” bundle.

94