Configuration
142
PBX Networking
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PBX 1 first searches for a free channel in the “C” bundle.
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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
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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 523/524 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 entries. You use
this table to assign telephone numbers and/or ranges of telephone numbers
to a particular route.
A
default
entry in the numbering table makes it possible to seize a “default
route” for all remaining unassigned numbers. In particular, this simplifies
configuration of the Forum 523/524 as a subsidiary system: the only entry
you assign to the
default
entry is the route to the host system
Summary of Contents for forum 523
Page 1: ...Forum 523 524 Mounting and Commissioning Manual ...
Page 10: ...8 ...
