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Example dial plan rules
Cisco TelePresence ISDN Gateway 2.1 Online help (Printable format) 34 of 135
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 to ISDN telephone calls
•
Setting up dial plans rules when using TCS-4
Note these examples do not apply if the Cisco TelePresence ISDN Gateway is in leased line mode. Refer
to the following example dial plan rules for leased line mode:
• Dial plan examples in leased line mode
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 Maximum 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,
two channels) to any call with prefix
552. The specified action means that
the dial plan removes the prefix and
dials the following group of
characters in the condition. For
example, an incoming call to
"55264321" will cause an outgoing
call allocated with two channels to be
placed to "64321".