Operation Manual

Configuring ISDN Call Destinations 115
Configuring ISDN Call Destina-
tions
The WAN Call Directory is a list of ISDN Call Destination Configura-
tions. In general, you have to create one ISDN Call Destination
configuration for each destination (LANs and remote nodes) your
router will communicate with.
Before you start configuring ISDN call destinations, you should be
aware of how the NetWare® MultiProtocol Router
TM
for ISDN 3.1
identifies and treats outgoing and incoming calls.
Outgoing calls are identified by the unique Call Destination Name of
an ISDN call destination. The call destination names are for example
used within the protocol bindings and identify the target when calls
are set up with CICCON or CALLMGR.
Incoming calls are treated as follows:
- First, the NetWare MultiProtocol Router for ISDN checks whether
it can find the CLI number transmitted over the D channel in a call
destination´s CLI List.
- If not, it takes the Default Call Destination Configuration of the
interface to which the call is directed and switches through the B
channel with the parameters defined in the default destination.
- In the next step, it compares the number transmitted over the B
channel (caller-specified number) with the entries for ISDN
Number in the configured ISDN call destinations.
- If it does not find a corresponding entry, it checks the transmitted
system ID with the Remote System IDs configured in the call
destinations.
- If this is not successful either, the call is accepted with the param-
eters defined in the Default Call Destination Configuration for the
specified interface.
If one of the checks is successful, the call is accepted with the param-
eters defined in the corresponding ISDN call destination configura-
tion.
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