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  • real-time application (RTA)

    A real-time application (RTA) is an application program that functions within a time frame that the user senses as immediate or current. The latency must be less than a defined value, usually measured in seconds... (Continued) Continue Reading

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  • VoIP bandwidth: Calculate consumption

    The bandwidth needed for VoIP transmission depends on compression technology, packet overhead and the network protocol used. In this tip, learn how to calculate how much bandwidth your VoIP implementation will need. Continue Reading

  • IEEE 802.3at: Power over Ethernet plus

    802.3af Power over Ethernet (PoE) has been widely adopted for powering VoIP phones, wireless access points and a number of other network-connected products. But it provides a limited amount of power. In this tip, David Jacobs investigates the latest... Continue Reading

  • Power over Ethernet for network architects

    David Jacobs discusses how Power over Ethernet (PoE) is defined by the 802.3af standard, then looks at how PoE can help network architects simplify power distribution and potentially save money. Continue Reading

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