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ALSO CALLED: Voice over Internet Protocol, IP Voice, Cable VOIP, VoIP Services, Voice over IP, Voice-over-Broadband, VoB, Voice-over-IP
DEFINITION: Call admission control (CAC) is the practice or process ofregulating traffic volume in voice communications, particularly inwireless mobile networks and in VoIP (voice over Internet Protocol,also known as Internet telephony). Call admission control can also beused to ensure, or maintain, a certain level of audio quality in voicecommunications networks, or a certain level of performance in Internetnodes  … 
Definition continues below.
VoIPWhite Papers (View All Report Types)
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VoIP Basics for IT Technicians
sponsored by Fluke Networks
WHITE PAPER: VoIP brings a new environment to the network technician that requires expanded knowledge and tools to deploy and troubleshoot IP phones. This paper provides an introduction to VoIP technology and operation.
Posted: 21 Aug 2006 | Published: 01 Jul 2005

TOPICS:  IP Phones | VoIP
Fluke Networks

10 Myths of Enterprise VoIP Migration
sponsored by Citel
WHITE PAPER: Based on real world deployments, this white paper offers practical advice in building the business case for a VoIP migration.
Posted: 28 Jul 2006 | Published: 28 Jul 2006

Citel

VoIP: How to Plan for the Bandwidth and Calculate the Cost Savings
sponsored by Global Knowledge
WHITE PAPER: VoIP integrated networks are easy to design and the cost justifications are simple to calculate, learn the step-by-step process of how to calculate the potential cost savings of a voice and data integrated network for your organization.
Posted: 03 Apr 2006 | Published: 01 Jan 2005

Global Knowledge

XPI Solutions for Multi-Service/Access: Communications Test Equipment
sponsored by Agilent Technologies, Inc.
WHITE PAPER: This white paper discusses the importance for network operators to have visibility into the voice service quality being delivered to customers over voice-over-IP networks.
Posted: 24 Mar 2004 | Published: 12 Sep 2002

Agilent Technologies, Inc.
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VOIP DEFINITION (continued): …  and servers where VoIP traffic exists.Most CAC algorithms work by regulating the total utilizedbandwidth, the total number of calls, or the total number of packets ordata bits passing a specific point per unit time. If a defined limit isreached or exceeded, a new call may be prohibited from entering thenetwork until at least one current call terminates. Alternatively, agraceful degradation methodology can be implemented. This means thatthe audio quality of individual calls can deteriorate to a certainextent before new calls are denied entry. Another method involves theregulation of calls according … 
VoIP definition sponsored by SearchUnifiedCommunications.com, powered by WhatIs.com an online computer dictionary

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