Mitel Inter-Tel 5000, Installation And Maintenance Manual

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Chapter 6: Reference
Glossary
Page 6-42
Inter-Tel
®
5000 Installation Manual – Issue 2.4, May 2008
Dedicated Service Dedicated service reserves a group of B-channels for a specific function, such as
outgoing calls. The system uses trunk group programming to determine how the
channels are used. Therefore, the system would require a separate trunk group for each
function. The installer can create “PBX-provided” dedicated service on call-by-call circuits
through DB Programming (such as incoming only or accessible only to a group of users)
or the service provider can determine the dedicated service.
Dialed Number
Identification Service
(DNIS) DNIS identifies the number that the caller dialed to reach your location. The system
receives a base number and a specified number of digits that identify the dialed number.
*DNIS*
is a form of DNIS that does not have a specified number of digits. The system
receives a star (*) before the DNIS digits to signal the beginning of the dialed number.
Then there is another star after the digits to signal the end of the DNIS information.
Flexible Billing
(Currently not
supported on Inter-Tel
5000 platforms.)
Allows a 900 subscriber to modify a call’s billing rate while speaking with the caller.
H0 and H11
(Currently not
supported on Inter-Tel
5000 platforms.)
Switched digital service types that combine contiguous B-channels into a single bit
stream. H0 combines six channels into a 384 kbps bit stream. H11 combines 24
channels into a 1536 kbps bit stream. Applications for these services include video
conferencing and LAN connections.
Integrated Services
Digital Network (ISDN) ISDN is a network of channels that can provide simultaneous voice, data, and video
communication.
Multi-Rate ISDN
(Currently not
supported on Inter-Tel
5000 platforms.)
A type of switched digital service that allows the user to dial up, on demand, any number
of combined B-channels.
N X 64 kbps
(Currently not
supported on Inter-Tel
5000 platforms.)
A switched digital service type that combines the B-channels into a single bit stream.
Applications for this service include video conferencing and LAN connections.
Network Ring Again
(Currently not
supported on Inter-Tel
5000 platforms.)
Similar to the system queue feature that allows a caller to queue onto a busy endpoint
and then be called when the endpoint is available. However, Network Ring Again allows
queuing between two PBXs that are on the same ISDN network.
Non-Facility Associated
Signaling (NFAS)
(Currently not
supported on Inter-Tel
5000 platforms.)
When a site uses several PRI circuits, the D-channel on one circuit can support the B-
channels on other circuits, providing one additional B-channel per circuit (that is, 24 B-
channels instead of 23B+D). This arrangement requires D-channel backup.
On-Demand B-Channel
Selection This feature allows on-demand allocation of B-channels. With on-demand B-channel
selection, all B-channel trunks can be assigned to one trunk group and then programmed
to be used as needed (ARS, outgoing access, etc.). This feature takes full advantage of
the Inter-Tel system features (trunk groups, ARS, and call routing) and allows maximum
on-demand use of the bandwidth. This can be combined with Dedicated Service.
Primary Rate Interface
(PRI) The ISDN circuit that provides B-channels that can carry voice, data, and video
simultaneously. It also has one D-channel for out-of-band signaling and packet data. See
also 23B+D and 30B+D.
The Inter-Tel 5000 family of Network Communications Solutions does not support the use
of the D-channel for packet data.
Table 6-26. Networking Terminology (Continued)
Term Definition