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Call waiting
You can let a busy internal party know that you want to talk.
Æ
Callback (
27)
You can request that a party whose number you have dialed should automat-
ically call back.
Caller ID suppression, external
Before dialing an external number you can suppress the display of the caller's
telephone number and name on the called party's screen.
Æ
Caller list (
18)
Unanswered calls are stored and you can retrieve them (external calls can
only be retrieved via ISDN with display of station number).
Release 2.2 and later: the system automatically stores the station numbers
of all external calls accepted, if the service technician has configured this
function.
Æ
Conference, Five-party (
22)
You can add additional parties to a call.
Æ
Consultation hold (
26)
You can call a second party while engaged in a call.
Delete message (toll fraud monitoring)
If a specified length of time is exceeded for an existing external - external call,
a corresponding message is shown on the display.
Directory
If a name has been assigned a name to at least one station or to one system
speed dial number, you can use the internal telephone directory for dialing the
number.
DISA (Direct Inward System Access)
From an external location you can activate and deactivate functions in your
system the same way as an internal party. From an external location you can
also set up outgoing external calls via your system.
Display call charges
You can display the total charges that have accrued for a specific period of
time on the telephone. You can display and retrieve chargeable calls by press-
ing the Display call charges key.
Release 2.2 and later: After the call charges for the last chargeable call con-
ducted are displayed, the total connection charges that have accrued appear
on the screen.
Do not disturb
You can temporarily suppress calls (silent ringing).
Door opener function - activate
You can allow a visitor to activate the door opener by entering a code.
DTMF dialing (dual-tone multifrequency dialing, also called tone dialing),
DTMF suffix dialing
You can transmit DTMF signals during a call, for example to access an an-
swering machine.
Handsfree answer
If the handsfree answer feature has been enabled, you can answer and talk
handsfree in response to a "speaker call" without performing any actions.
31
Meaning of the Functions
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