User guide

Help Contents > Managing Dial Plans > Example Dial Plan Rules
Example Dial Plan Rules
Use the examples on this page to help you configure your own dial plan rules:
● Allocating Bandwidth Using Rules for IP to ISDN calls
● Allocating Bandwidth Using Rules for ISDN to IP calls
● Forwarding ISDN Calls to an Operator or a Conference
● Specifying Voice-only IP Telephone Calls
Allocating Bandwidth Using Rules for IP to ISDN calls
Using rules, it is possible to limit the bandwidth available for calls to particular numbers, or to allocate more bandwidth
to priority calls. For example, you may want to allocate maximum bandwidth to calls to the chief executive of your
company. In this case, set a condition that matches calls to that specific number, set the action to call with the original
called number, and set the call bandwidth to use 768kbps.
As cost is an issue with calls to the ISDN network, you may want to provide users with a list of prefixes that they can
use to control the bandwidth for the calls they make. In this way, rules enable you to allow users to select their own
appropriate bandwidth for a call. The table below shows some rules that you could configure to set up different prefixes
to represent the number of channels that will be available to the call. It also shows how the IP to ISDN dial plan will
remove those prefixes and dial the required number.
# Condition Action Call type Bandwidth Description
0 Called number
matches
"552 (D*)"
Call this
number "$1"
Video with
BONDING
128Kbps This rule allocates 128kbps (that
is, 2 channels) to any call with
prefix 552. The specified action
means that the dial plan
removes the prefix and dials the
following group of numbers in
the condition. For example, an
incoming call to "55264321" will
cause an outgoing call allocated
with 2 channels to be placed to
"64321".
1 Called number
matches
"553 (DDDD)"
Call this
number "$1"
Video with
BONDING
192Kbps This rule allocates 192kbps (that
is, 3 channels) to any call with
prefix 553. The specified action
means that the dial plan
removes the prefix and dials the
group of four numbers that
match the four digits
represented by "(DDDD)" in the
condition. For example, an
incoming call to "5539876" will
cause an outgoing call allocated
with 3 channels to be placed to
"9876".
2 Called number
matches
"558 (DDDD)"
Call this
number "$1"
Video with
BONDING
512Kbps This rule allocates 512kbps (that
is, 8 channels) to any call with
prefix 558. The specified action
means that the dial plan
removes the prefix and dials the
group of four numbers that
match the four digits
represented by "(DDDD)" in the
condition. For example, an
incoming call to "5585678" will
cause an outgoing call allocated
with 8 channels to be placed to
"5678".
Note that in the above example, in the absence of any further rules, any calls that do not match the three listed
conditions, will be rejected as that is the default behavior of the dial plan.
Allocating Bandwidth Using Rules for ISDN to IP calls
Codian ISDN GW 3200 Series User Guide Version 1.0(1.18)
Copyright (c) Codian Limited, 2006 Page 21 of 50