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404 Glossary

Enterprise Edge Programming Operations Guide P0911588 Issue 01

Digital Access Signaling System Number 2 (DASS2)

A UK proprietary standard for signalling on ISDN connections between customers’

premises and the public network. DASS2 is used between the customer’s

equipment and ISDN local exchange and is suitable for multiple access.

Digital Private Network Signalling System (DPNSS)

DPNSS is a networking protocol that gives operators access to Enterprise Edge

features over multiple combined networks in International systems only. Corporate

offices, separated geographically, can be linked over DPNSS to other Enterprise

Edge systems, bypassing the restrictions of the PSTNs to which they may be

connected. This allows connectedEnterpriseEdgesystemsto function like a private

network.

Direct-dial

Afeature that lets you dial a designated telephone in your system witha singledigit.

As many as five direct dial sets can be established. Each telephone in the system is

assignedto onedirect-dial telephone.Thereis a single,systemwide digitforcalling

the assigned direct-dial telephone of any telephone. Direct-dial telephones are

established in System programming. Telephones are assigned to a direct-dial

telephone under Capabilities in Terminals and Sets programming.

Direct-dial #

A digit used system-wide to call the Direct-dial telephone. The digit is assigned

under Access codes in System programming.

Direct-dial number

The digit used to call the direct-dial telephone.

directed pickup

See Call Pickup Directed.

Directory number (DN)

A unique number that is automatically assigned to each telephone or data terminal.

The DN, also referred to as an internal number, is often used to identify a telephone

when settings are assigned during programming.

Disconnect Supervision

Asettingthat enablesthesystemto detect whether anexternal caller hangs up.Once

an external caller hangs up, the system can disconnect its line. Disconnect

Supervision is enabled under Trunk/Line data in Lines programming.

Disk drive

A mass storage device that seeks, reads and writes data on a disk.

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Avaya BCM 2.0 Programming Guida Utente Pagina 404