Glossary
D
Data Interface Unit (DIU)
This optional unit provides connections for your standard multiline digital telephone and Industry Standard Telephone (IST) device such as a FAX machine or answering machine.
Departmental Station Operation
The operation of stations that are organized into departments.
Dial By Name
This feature allows users to employ any
Digital Voice Announcing (DVA)
The DVA is a
Direct Inward System Access (DISA)
An enhancement option that allows outside callers to directly call a station or access certain internal system features, including all line groups and ARS. To prevent fraudulent access and unauthorized use, the caller must use an authorization code and system access code to gain access to outside lines as well as many of the advanced telephone features.
Direct Inward Station Dialing (DISD or DID) This feature allows an outside party to call an intercom station directly without an attendant’s assistance.
122 | Comdial | Sept ‘04 |