F


Fast Link Pulse (FLP)

A tone sent from a Cisco Catalyst switch to detect the presence of a device, such as an IP phone, that requires power.



first-in, first-out (FIFO)

A queuing strategy that sends packets out of a queue based on the order in which they entered the queue.



five nines

99.999 percent uptime, which equates to five minutes of downtime per year.



Foreign Exchange Office (FXO)

An analog port on a gateway that connects to an office (that is, a phone switch, such as a PBX or a switch in the local CO).



Foreign Exchange Station (FXS)

An analog connection on a gateway that connects to a station, such as an analog phone, fax machine, or speaker phone.



forklift upgrade

Replaces an existing telephone system with an IP telephony system in a single step, as opposed to a phased migration.



framing bit

A single bit that indicates the end of a frame.



frequency response

The range of frequencies reproduced or transmitted.






Voice over IP First-Step
Voice over IP First-Step
ISBN: 1587201569
EAN: 2147483647
Year: 2005
Pages: 138
Authors: Kevin Wallace

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