107
PBX Networking
PBX Networking
and the criteria (business or private
call, booking numbers) for evaluat-
ing 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 number-
ing”, allowing the same telephone
number to be used for reaching each
user within the PBX network.
With closed numbering, the
OpenCom 510 determines which
route to seize from the telephone
number dialled. The information
needed for routing a call can be con-
figured in a numbering table con-
taining up to 100 entries. You use
this table to assign telephone num-
bers and/or ranges of telephone
numbers to a particular route.
A
default
entry in the numbering ta-
ble makes it possible to seize a “de-
fault route” for all remaining unas-
signed numbers. In particular, this
simplifies configuration of the
OpenCom 510 as a subsidiary sys-
tem: the only entry you assign to the
default
entry is the route to the host
system
Example of closed numbering tables
The automatic switching of call re-
quests (i.e. routing) by means of
trunk group overflow or default
numbering can lead to “circular
switching”.
To avoid this, a “transit” counter is
incremented whenever a connection
is switched through on Q.SIG lines.
When the configured maximum
value is reached, further switching
stops.
Technical Details
A different PBX number must be set
for each OpenCom 510 in a PBX net-
work. This setting can be found in
the Web console, in the menu
PBX Configuration: System
under
the heading
System linking
. You can
also set the maximum value for the
transit counter there. This value de-
pends on the topology of the PBX
network and should allow the sys-
tem to have the maximum number
of further connections possible.
You can display the connection sta-
tus of the lines at any time in the
Configurator menu
System info:
PBX
200-299
PBX
500-599
PBX
300-399
PBX
100-199
PBX
400-499
D: a
4: b
D: c
3: e
5: h
D: d
3: i
D: g
5: k
D: f
a
b
c
d
e
f
g
h
i
k
D:Default
Route
Summary of Contents for OpenCom 510
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