sary 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 trunk groups 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
OpenCom 100 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
OpenCom 100 as a subsidiary system: the only entry you assign to the
default entry is the route to the host system
PBX
100-199 c d a b
PBX
400-499
4: b
D: c
D: a
PBX
200-299 e g h
3: e
5: h
D: d f
PBX
500-599 i
PBX
300-399 k
3: i
D: g
5: k
D: f
D:Default
Route
Example of closed numbering tables
The automatic switching of call requests (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.
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119
Technical Details
A different PBX number must be set for each OpenCom 100 in a PBX network. 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 depends on the topology of the PBX network and should allow the system to have the maximum number of further connections possible.
You can display the connection status of the lines at any time in the
Configurator menu System info:
PBX: Trunks. You should check this in particular after making changes to a configuration to see whether all the lines used for system networking are operable.
Some of the features possible in
Q.SIG are not supported by
OpenCom 100 with all their options, for example callback on busy within the Q.SIG network. The call categories defined in Q.SIG (e.g. Emergency
Call, Operator, Normal) and the Q.SIG name transmission feature (“user names”) are fully supported.
OpenCom 107
OpenCom 130
OpenCom 150 -
S
0
1
S
S
-
S
0
2
M/S
M/S
The code digits to be used for seizing a route with open numbering are not transmitted to the destination
PBX and thus cannot be evaluated by it. To reseize a route (for example for a callback), you must set the appropriate digit prefixes in the trunk group configuration for the routes to be reseized.
Tip: If, for example, you are configuring a route which can be seized using routing code “5” and have selected one or more bundles for this route, change the Prefix for dest.
call number at incoming internal setting to “5” for this bundle in order to enable the route to be reseized.
Owing to their hardware properties, not all S
0
ports of the OpenCom 100 can be used for PBX networking without restrictions. Depending on the type of system, some ports can only operate in the L1 master mode or L1 slave mode. The external S
0 and S
2M
ports can be set according to the following table.
-
S
0
3
-
M/S
-
S
0
4
-
M
S
2M
–
M/S
M/S
120
Technical Details PBX Networking
Legend
S = Slave
M/S = Master/Slave
M = Master
Note: The S
0
ports on add-on cards can be operated in both L1 master and L1 slave mode.
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121
