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Branch Telephone Exchange (FFN_616)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: ffn_616.ttl

Name

branchTelephoneExchange

Attribute

FFN Feature Function

Definition

A local, usually private, telephone switch that provides circuit-switching within an organization (for example: for an office or campus).

Description

Evolved from the manual switchboard (operated by a person plugging cables into sockets and termed a 'private manual branch exchange'), internal calls are routed locally, sharing a limited set of outside lines to the main telephone exchange (central office) operated by the telephone company. Outgoing calls are made by dialing 9 (or 0 in some systems) followed by the external number; an outgoing trunk line is automatically selected upon which to complete the call.

Accepted

2013-10-18

Allowed for

• AL010 Facility
• AL013 Building

RWOI terms naming it

• RWO_00484 Branch Telephone Exchange
• RWO_00485 Branch Telephone Exchange Building

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.