A tone sent from a Cisco Catalyst switch to detect the presence of a device, such as an IP phone, that requires power.
A queuing strategy that sends packets out of a queue based on the order in which they entered the queue.
99.999 percent uptime, which equates to five minutes of downtime per year.
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).
An analog connection on a gateway that connects to a station, such as an analog phone, fax machine, or speaker phone.
Replaces an existing telephone system with an IP telephony system in a single step, as opposed to a phased migration.
A single bit that indicates the end of a frame.
The range of frequencies reproduced or transmitted.
