Altigen AltiWare OE 4.0, Administration Manual

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Defining an IP Dialing Table
AltiWare OE System Administration Manual 41
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Defining an IP Dialing Table
To use an AltiServ-to-AltiServ connection for Voice over IP, you need to
configure the routing in the IP Dialing Table for each AltiServ system.
To enable voice over IP, you need to have at least one Triton
VoIP board installed and configured. (The IP Dialing Table is
disabled unless there is at least one VoIP board installed.) You
also need to make sure you have assigned an IP Trunk Access code, as
discussed on page 26.
About the Location ID Digit Length
In the IP dialing table, you define the addresses of the remote locations and
set a Location ID Digit Length. The dialing length sets the length of the
Location ID, the number you define in the dialing table to identify each
remote location.
The Location ID is used in dialing: the user dials the IP trunk access,
followed by the location ID to identify the remote location, followed by the
remote extension. For example, if the IP trunk access is 8, the location ID
is 27, and the extension to reach is 837, the user dials 8 27 837.
The Location ID Digit Length can be set to None, 1, 2, or 3—a seemingly
simple choice. However simple it seems, though, it needs to be given some
thought before it is set. Location IDs are used system wide, and a
coordinated configuration is recommended. It is highly recommended to
use the same length for the location ID for all networked AltiServ systems.
It may also be advantageous to use the same location IDs at all locations.
For example, if the location ID for the Chicago office is 12 when dialed
from both San Francisco and New York, users who travel will find it easier
to work at multiple locations.
Use Caution Before Changing the Dialing Length
The dialing length can be changed without having to re-install or re-start
AltiWare IP. However, if this number is changed, the location IDs are all
altered—so that it is advisable to keep the original length if it works well.
If you increase the location ID length, the number 0 is added to the front of
the location IDs. For example, if you change the length from 2 to 3, location
IDs 02 and 27 will become 002 and 027 respectively.
If you decrease the number of digits in the location ID, the last digit is
dropped from location IDs. For example, Location ID 240 becomes 24.
There is an exception to this truncation method: if the leading digit is 0, it
is dropped. For example, 048 becomes 48.