BootP
The Bootstrap Protocol (BootP) is used to automatically issue an IP
address.
Bps
Bits per second. A unit of measure for the transmission rate.
BRI
See Basic Rate Interface
Bridge
A bridge is a network component for connecting the same types of
network at Level 2 of the OSI model. Data packets are transmitted
using MAC addresses. The use of bridges divides up the network
and reduces the load.
Broadcast
In a broadcast, data packets are sent from one point to all the sub-
scribers in a network, e. g. if the recipient is not yet known. Ex-
amples of this are the ARP and DHCP protocols. The communica-
tion is via broadcast addresses: MAC networks:
FF:FF:FF:FF:FF:FF, IPv4 networks: 255.255.255.255, IPv6 net-
works: ff00::/8
Broker
Brokering makes it possible to switch between two subscribers
without the waiting subscriber being able to hear the other conversa-
tion.
BRRP
BRRP is an implementation of the Virtual Router Redundancy Pro-
tocol (VRRP). The aim of the method is to compensate for the fail-
ure of the default gateway. Multiple routers are combined to form
one virtual router. If one of these routers falls over, the others are
able to replace it.
Bundle
The external connections of a PABX can be grouped into bundles.
Busy On Busy
If Busy on Busy is enabled, anyone who calls an engaged sub-
scriber hears the engaged tone. Call waiting or call forwarding to a
team are not possible.
CA
Certificate Authority. See Certificate.
Cache
The device temporarily stores data used in name resolution in the
cache. See also ARP.
Call allocation
With call allocation, calls coming into the PBX are assigned to par-
ticular numbers or applications (remote access, ISDN login, ...).
Call centre
A call centre provides support, shares information and sells over the
telephone.
Call deflection
Call deflection (CD) is a performance feature. A call can be forwar-
Glossary
bintec elmeg GmbH
688
elmeg hybird 120 / hybird 130
