Meridian America Link/Customer Controlled Routing - Manual (Page 573)

List of terms 555
Meridian Link Release 5C/CCR Release 3C Installation and Upgrade Guide
Customer Controlled Routing (CCR)
CCR is a product that enables you to control and route Automatic Call
Distribution (ACD) calls entering your Meridian 1 system. You can provide
specific recorded announcements, music, and so on before assigning a call
to an agent.
Direct Inward Dialing (DID)
An attribute of a trunk. The central office passes the extension number of
the called party over a DID trunk to the PBX when offering a call to the
PBX. The PBX is then able to automatically route the call to the extension
without requiring operator/attendant assistance. In this way, a single trunk
can terminate calls for many different extensions (but not simultaneously).
directory number (DN)
The number that identifies a telephone set on a PBX or in the public
network. It is the number that a caller dials in order to establish a connection
to the addressed party. The DN could be a local PBX extension (local DN),
a public network telephone number, or an ACD DN, the pilot or group
number for an ACD queue.
Directory Number Identification Service (DNIS)
A service provided on a trunk. DNIS identifies to the called system the last
digits of the number actually dialed by the caller. Meridian Link Release
5C and CCR Release 3C, in conjunction with X11 Release 24, support from
seven to 31 DNIS digits. The DNIS digits are sent as in-bank DTMF tones
on non-ISDN trunks, or using dial pulses on dial pulse (DIP) trunks. On
ISDN PRA trunks, DNIS is carried in the called party IE field of the Q.931
Setup message.
DN
See directory number (DN).
DNIS
See Directory Number Identification Service (DNIS).
Dual Tone Multi-Frequency (DTMF)
The signaling method used with touch-tone 2500 telephones. Digits are sent
as in-band tones, each digit being a unique combination of 2 out of 16 tones.