Configuring the ISDN gateway
9
Step three: Configure an H.323 gatekeeper
If you have H.323 endpoints, using an H.323 gatekeeper can make it easier for callers
to make their call. You can configure the ISDN gateway to use an external gatekeeper
or its own built-in gatekeeper.
To configure the use of an H.323 gatekeeper, go to Settings > Gatekeeper.
For more information refer to the online help topic: “Configuring gatekeeper
settings”.
Step four: Configure the dial plan
The default behavior of the ISDN gateway is to reject all calls. You must configure a
dial plan to allow permitted calls to be placed.
There are a number of different ways in which you can use the dial plan. For
example, you can use the dial plan to link specific bandwidths to certain prefixes,
thereby enabling users to use the correct bandwidth for an IP to ISDN call. You can
also use the dial plan to enable the ISDN gateway to join incoming ISDN calls to the
correct conference on an MCU. These dial plan configurations are explained in
greater detail and with supporting examples in the online help accessible from the
web inter face.
The simplest configuration is to create a dial plan that will:
connect any IP to ISDN call that has been routed to the ISDN gateway to the
number that the caller has dialed (using any free enabled port)
connect any ISDN to IP call to the auto attendant of your MCU
To do this:
1 In the web interface, go to Dial plan > IP to ISDN and click Add rule.
2For
Condition, select Match any called number.
3For
Action, select Call with the original called number.
4 Leave the other values unchanged. Click Add rule to add the rule to the dial
plan.
5Now go to Dial plan > ISDN to IP, and click Add rule.
6For
Condition, select Match any called number.
7For
Action, select Call this number and enter the IP address of your MCU.
8 Leave the other values unchanged. Click Add rule to add the rule to the dial
plan.