Creating a Dial Plan for a
Multisite Organization
For the creation of a Dial Plan for a multisite WAN, you must have sufficient
resources to make it function properly. If you don’t have the proper link bandwidth,
the call will always route over the PSTN, therefore negating the benefits
that multisite WAN connections are supposed to give you. If the system can route
calls over the WAN then you will be able to bundle the costs of long distance
with your data connection, and hopefully maximize your investment.When you
implement the dial plan with the proper gatekeeper call admission control mechanism,
the dial plan will decide when to place calls across the WAN and what it
will do if the gatekeeper will not accept the call.