coming external connections and all external calls you make are
stored.
Display of caller's
number
A suitable telephone is a prerequisite for this feature. Transmission
of the telephone number must be permitted by the caller.
DLCI
In a Frame Relay network, a DLCI uniquely describes a virtual con-
nection. Note that a DLCI is only relevant for the local end of the
point-to-point connection.
DMZ
Demilitarised Zone
DNS
Domain Name System
Do not disturb
Station guarding
DOI
Domain of Interpretation
Domain
A domain refers to a logical group of devices in a network. On the
Internet, this is part of a naming hierarchy (e.g. bintec.de).
Door intercom
Door intercom device. It can be connected to various PBXs. A tele-
phone can be used to take an intercom call and open the door.
Door intercom on
analogue connection
An analogue connection can be set up for connected of function
module M06 to connect a DoorLine intercom system.
Door terminal ad-
apter
The function module can be installed on an analogue connection of
your PBX. If a door intercom (DoorLine) is connected to your PBX
via a function module, you can speak with a visitor at the door via
every authorised telephone. You can assign particular telephones to
each ring button. These phones then ring if the ring button is
pressed. On analogue telephones, the signal on the telephone
matches the intercom call. In place of the internal telephones, an ex-
ternal telephone can also be configured as the call destination for
the ring button. Your door intercom can have up to 4 ring buttons.
The door opener can be pressed during an intercom call. It is not
possible activate the door opener if an intercom call is not taking
place.
Dotted Decimal
Notation
The syntactic representation of a 32-bit whole number, written in
four 8-bit numbers in decimal form and subdivided by a point. It is
used to represent IP addresses on the Internet, e.g. 192.67.67.20
Downstream
Data transmission rate from the ISP to the customer.
DSA (DSS)
Digital Signature Algorithm (Digital Signature Standard).
Funkwerk Enterprise Communications GmbH
Glossary
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