Instruction manual

GLOSSARY
Interworking
The linking of dissimilar networks to provide an end-to-end call. In public networks, inter-
working might include a Common Channel Interoffice Signaling (CCIS) path which does
not support ISDN. In private networks, a tandeming PBX might interface an existing ana-
log facility to an ISDN facility to provide calls end-to-end.
Intraflow
Intraflow allows calls that are unanswered within a predefined time, at a split to be
redirected to other splits on the same switch.
In-Use Lamp
A red lamp on a multi-appearance voice terminal that lights to show which call appear-
ance will be selected when the handset is lifted or which call appearance is active when a
user is off-hook
Inward Restriction
A called party that is inward restricted is denied the ability to receive incoming exchange
network calls, attendant originated calls, and attendant completed calls. A call that is
denied because of termination or inward restriction is routed to intercept, the attendant,
or a recorded announcement depending on the calling party. If the calling party is a DID,
Advanced Private Line Termination (APLT), or tie trunk the call is routed to the attendant
or recorded announcement,
at the customer's option. In all other cases the call is routed
to intercept.
ISDN-Basic Rate Interface (ISDN-BRI)
ISDN-BRI is one of the two standard ISDN frame formats. The ISDN-BRI is typically
used to connect telephones or work stations to an ISDN-capable switching system. It
provides one 16-kbps signaling and data channel (D-channel) and two 64-kbps informa-
tion channels (B-channels). The primary purpose of the signaling channel is to convey
Q.931 message-oriented signaling for the setup and tear down of calls carried by the B-
Channels on the BRI interface.
For G1V5.0 system, ISDN-BRI is only used to provide an ASAI link to the switch in sup-
port of the Inbound Call Management feature.
ISDN Gateway
G-16
An adjunct network that forwards information from the switch to a host for data screen
delivery to agents in an ACD split.