IT Baseline Protection Manual - The Information Warfare Site

Telecommunications Telecommunications System (Private Branch Exchange, PBX)
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8.1 Telecommunications System
(Private Branch Exchange, PBX)
Description
A private digital ISDN telecommunications facility
(switching device for connections between incoming and
outgoing lines for the purpose of exclusive data exchange, in
the following referred to as private branch exchange - PBX)
is both a communications basis for its proper domain and an
interface with the public network. It is used to transmit
speech and images (fax) and increasingly serves as a transmission medium for LAN coupling and
electronic mail systems. If it is used as a LAN, the provisions of Chapter 6.1, Server supported
Network, must be observed.
For the purposes of this Chapter, it is assumed that a person responsible for the PBX has been
designated who is able to take the fundamental security decisions and initiate security safeguards.
Threat Scenario
The following typical threats (T) are assumed as regards IT baseline protection of a private branch
exchange:
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IT-Baseline Protection Manual: Otober 2000
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