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The call admission control with the call threshold global command does not block outbound calls from PSTN

Core Issue

The call admission control (CAC) does not disallow outbound calls with the call threshold global command, because it is designed to block inbound calls only.

Resolution

Call admission control enables control over the audio quality and video quality of calls over a wide-area (IP WAN) link, because it limits the number of calls that are allowed on that link at the same time. For example, call admission control can be used in order to regulate the voice quality on a 56-kbps frame relay line that connects the main campus and a remote site.

Refer to Call Admission Control  for more information.

The call threshold global command does not disallow outbound calls to the Public Switched Telephone Network (PSTN). In order to achieve that, use Resource Reservation Protocol (RSVP).


Version history
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Last update:
‎06-22-2009 05:31 PM
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