Proximus Forum 500 Series, Руководство по монтажу и пусконаладке

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Configuration
236 PBX Networking
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.
● If all the lines in bundle “C” are busy, the system tries to set up a
connection via bundle “E”. PBX 3 switches the connection through,
provided it is appropriately configured (refer to
Numbering starting on
page 236).
● If it was not possible to set up an indirect connection via PBX 3, the system
tries again via bundle “A”. The “prefix” necessary for this can be configured
with the route.
●
The user does not get a busy signal until the attempt to set up an indirect
connection via the network operator has also failed.
Note: If an internal connection is switched via a network operator, the
call is signalled using the external number of the calling PBX.
For each route you can define a randomly selectable code digit for seizing the
route. You can also configure whether a user is authorised to seize a particular
route, whether LCR is to be used for one of the bundle and the criteria
(business or private call, booking numbers) for evaluating call data.
Numbering
A user can seize a particular route by pre-dialling a specific code digit. With
this “open numbering”, a user must always dial this code digit and then the
telephone number in order to reach a party in another PBX.
If none of the telephone numbers in your PBX network occur twice, you can
also configure “closed numbering”, allowing the same telephone number to
be used for reaching each user within the PBX network.
With closed numbering, the Forum 5004/5008/5012 determines which
route to seize from the telephone number dialled. The information needed for
routing a call can be configured in a numbering table containing up to 100