AT&T CentreVu Custom Reports Manuel d'instructions Page 21

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Understanding trunks
Issue 3 July 2001
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trunks
ISDN Integrated Services Digital Network (ISDN) trunks allow
voice, data, video, and signaling information to be sent with
calls.
There are two types of ISDN trunks:
ISDN-Basic Rate Interface (ISDN-BRI) connect telephones,
personal computers, and other desktop devices to the switch.
ISDN-Primary Rate Interface (ISDN-PRI) connect equipment
such as switches to the network, and acts as an interface
between equipment such as switches and computers.
RLT Release-link trunks (RLT) use Centralized Attendant Service
(CAS) to connect remote switches to attendants who are at a
central location.
Tandem Tandem trunks are a type of tie trunk used for large networks.
Tie Tie trunks connect a switch to a CO, or two switches together
in a private network.
WATS Wide Area Telecommunications Service (WATS) trunks allow
calls to certain areas for a flat-rate charge. Use WATS trunks to
reduce long-distance bills when your company places many
calls to a specific geographical area in North America.
trunk group description
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