Lucent Technologies DEFINITY ProLogix Solutions, Overview

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10 Network Interfaces and Equipment
DEFINITY ProLogix Solutions Release 2 Overview 555-235-100 Issue 2 June 1999 10-16
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800-service trunks, which let your business pay the charges for inbound long-
distance calls so that callers can reach you toll-free
• Direct Inward Dialing trunks, which connect DEFINITY ProLogix Solutions to
the local central office for incoming calls dialed directly to stations without
attendant assistance
•
Digital Service 1 trunks, which can be used to provide T1 or ISDN Primary Rate
Interface service
Tie Trunks
Tie trunks carry communications between DEFINITY ProLogix Solutions and other
switches in a private network. Several types of trunks can be used, depending on the
type of private network you establish.
Auxiliary Trunks
Auxiliary trunks connect devices with the switch. Some of the features that are
supported with this type of trunk are recorded announcements, telephone dictation
service, malicious call trace, and loudspeaker paging.
Centralized
Automatic Message
Accounting (CAMA)
and Enhanced 911
Trunks The Enhanced 911/Centralized Automatic Message Accounting (CAMA) trunk
interface circuit pack enables DFEINTIY ProLogix Solutions to interface with
Centralized Automatic Message Accounting trunks to provide Caller’s Emergency
Service Identification (CESID) information to the local community’s Enhanced 911
system through the local central office. With this feature, Enhanced 911 systems can
see the extension number on the DEFINITY ProLogix Solutions system. This is
required by some legislative and regulatory laws in certain states in the United States.