Understanding The Dial Plan - Avaya Communication Manager Administrator's Manual

Planning the System
You will find many places in the administration interface where you are asked to enter a port or
slot. The port or slot is actually an address that describes the physical location of the equipment
you are using.
A port address is made up of four parts:
cabinet — the main housing for all the server equipment. Cabinets are numbered starting
●
with 01.
carrier — the rack within the cabinet that holds a row of circuit packs. Each carrier within a
●
cabinet has a letter, A to E.
slot — the space in the carrier that holds an individual circuit pack. Slots are numbered
●
01-16.
port — the wire that is connected to an individual piece of equipment (such as a telephone
●
or data module). The number of ports on a circuit pack varies depending on the type.
So, if you have a single-carrier cabinet, the circuit pack in slot 06 would have the address
01A06. If you want to attach a telephone to the 3rd port on this board, the port address is
01A0603 (01=cabinet, A=carrier, 06=slot, 03=port).

Understanding the Dial Plan

Your dial plan tells your system how to interpret dialed digits. For example, if you dial 9 on your
system to access an outside line, it is actually the dial plan that tells the system to find an
external trunk when a dialed string begins with a 9.
The dial plan also tells the system how many digits to expect for certain calls. For example, the
dial plan may indicate that all internal extensions are 4-digit numbers that start with 1 or 2.
Let us take a look at an example dial plan so you'll know how to read your system's dial plan.
The following figure shows an example of a simple dial plan.
50 Administrator Guide for Avaya Communication Manager