Ericsson Premium User Manual page 62

Glossary
Information
Internal callers are informed about absence
and time of return. External callers are diverted
to the operator, where the same information is
available. Information can be of two kinds:
1. Pre-programmed text information.
2. Voice information.
Intrusion
To intrude on an ongoing call when a requested
extension is busy. See section
on page 11.
IP call
Internal call sent via internal data network (LAN or WAN).
ISDN
Integrated Services Digital Network. Provides
your system with supplementary services from
the public net.
Least cost routing
A function that automatically selects the
cheapest way to connect your external call (not
necessarily the shortest distance).
Mailbox
The mailbox system controls the messages that
are left for or sent by you when you are absent.
See section "Mailbox System" on page 31.
Message
A message can be sent to any extension. This
is useful when you receive the busy tone or get
no answer. There are two kinds of message:
1."Call me" message.
2. Voice message.
See section "Internal
62
"Outgoing Calls"
Messages" on page 26.
Mute
To switch the microphone temporarily off.
See section "During Calls" on page 14.
Password
A four-digit code needed to e.g. block your
extension and retrieve messages from the
mailbox system. You can set your own
password. See section "Security" on page 48.
PBX
Private Branch Exchange. Your telephone
switching system (e.g. BusinessPhone 250).
Pre-defined text
Pre-programmed absent information.
See section "Information" on page 23.
Third party
A third connection (person), which can be
included in an ongoing two person
conversation. The connection can be internal
or external.
See section "During Calls" on page 14.
Tie line
An external line from the private network.
Transfer
During an internal or external ongoing call you
can make an inquiry and then transfer the call
to another party (internal or external).
See section "During Calls" on page 14 and
"Useful Hints" on page 56.
Trunk line
A trunk line is the same as an external line.
Can be either digital or analog.
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