Data Connection (DC) Directory

A user directory included with the Cisco CallManager software.


An ISDN channel that carries signaling information, using the Q.931 protocol.

device unit

Represents the amount of work a CCM can perform.

dial peer

A configuration option that tells a router how to reach specific phone numbers.

dial plan

A set of instructions for reaching various phone numbers.

difference signal

A sample representing the difference between a digital sample and the previous sample, which consumes less bandwidth than sending an entire sample.

dual tone multifrequency (DTMF)

Two simultaneous frequencies that are interpreted as a dialed digit.

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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