class of service

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class of service

(1) A classification assigned to users of a telephony network that gives them particular rights and privileges. In an internal telephone system, it can include the ability to make international calls or dial 900 numbers. In the public telephone network, it is used for tariffs and differentiates between categories such as residential or commercial, flat rate or message units, private line or party line.

(2) In an enterprise network, class of service (CoS) differentiates high-priority traffic from lower-priority traffic. Tags may be added to the packets to identify such classes, but they do not guarantee delivery as do quality of service (QoS) functions, which are implemented in the network devices. See QoS.

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No references found			Each class of service is backed by Service Level Agreements (SLAs) that include latency, packet loss, jitter and availability depending on class of service ordered. GLOBAL CROSSING DEBUTS IP VPN SERVICE by Computer Protocols IP differentiated Class of Service mechanisms ensure priority treatment of voice calls and when voice channels are not in use, voice bandwidth automatically becomes available to data applications, increasing throughput and performance. EQUANT REACHES MILESTONE WITH VOICE FOR IP VPN SERVICE by Worldwide Telecom EdgeMarc Network Services Gateways Now Feature Multiple Priority Queues, BGP Routing and Class of Service (CoS) Tagging for MPLS Deployments SANTA CLARA, Calif. Edgewater Networks, Inc. Enhances Award-Winning Bandwidth Management ... by Business Wire			class B amplifier class B auxiliary power class B modulator class B push-pull sound track class browser class C amplifier class C auxiliary power class Cn class D amplifier class D auxiliary power class E amplifier class F amplifier class formula class frequency class hierarchy Class Hour class II-associated invariant chain peptide class interval class library class limits class mark Class Master Class Mentor class method class NP problems class of service Class Oriented Ring Associated Language class P ballast class P problems Class Ranks class S modulator Class Struggle Class Struggles in France, 1848 to 1850 class switch class variable class, social class-A door class-B door class-C door class-D door class-E door Class-Relation Method Classes, Social classic classic botulism classic box Classic C classic car classic epidemic typhus Classic Revival Classic-Ada			CLASS Message Waiting Indicator Class method Class Method Interface Complexity Inherited Class Method Interface Complexity Local class midpoint class midpoint class midpoint class midpoint class midpoint class Monocotyledonae class Monocotyledones class Musci class Myriapoda class Myxomycetes Class Name, Responsibilities, and Collaborators Class Not Found Exception Class not registered class NP problems class Nuda Class Of Class of a curve Class of Business Class of Device Class Of Interface Class of Option Class of Options Class of Property Class of Restriction class of service Class of Service Buffer Class of Service Override Class of Service Queues Class of Service restriction Class Of Service Table Class of Supply Consumption Model Class of Trade Class of Traffic class Oligochaeta class Onychophora class Oomycetes class Ophiuroidea Class Orientation With Class Oriented Ring Associated Language Class Oriented Ring Associated Language class Osteichthyes class P ballast class P ballast class P ballast class P ballast class P problems class Pauropoda class Pelecypoda class period class period class period class period class Phaeophyceae class Phasmidia class Pinopsida

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