User guide

Basic Functions

Charge Display (Charges)

If your network operator transmits charge information – even for external calls you

dial yourself – you will see the charge amount for the call during and after the call.

Transmission of Call Numbers

There are various ISDN services which either allow or prevent transmission of call

numbers between users.

“CLIP” feature

CLIP is an abbreviation which stands for “Calling Line Identification Presentation”.

The call number of the caller is displayed (if transmitted). If the call number has

also been entered into the directory of the OpenCom 100 / Aastra 800, the name is

displayed.

“CLIP no screening” feature

“CLIP no screening” offers transmission of an arbitrary call number for outgoing

connections instead of transmitting the actual call number of the caller. This

means that instead of your call number being displayed, e.g. a service call number

is displayed to the user you called. The “CLIP no screening” feature must be

ordered from the network operator and authorised for use by the system adminis-

trator during system configuration. When you receive an external call where the

caller is displaying a different call number than the one actually technically being

transmitted, a “?” appears next to the call number on the display. If the call number

indicated on the display is saved to a phone book entry, the name is displayed as

usual along with a question mark.

“CNIP” feature

CNIP is an abbreviation which stands for “Calling Name Identification Presen-

tation”. In addition to the call number of a caller, the name provided by the caller is

transmitted and displayed. This requires that the network operator transmits this

information with the connection. If the call number of the caller is also entered

into the OpenCom 100 / Aastra 800 directory, this – local – entry is given priority

on the display.

“CLIR” feature

CLIP is an abbreviation which stands for “Calling Line Identification Restriction”.

Before dialling a call number, you can determine from case to case whether the

transmission of your call number is to be suppressed to the person you are calling.

Select the “Suppress number” function to do so (seeMenu when Idle starting on

page 40).