User guide

Basic Functions

Blocked/Unblocked Call Numbers

Your telephone can be blocked for all or for certain external call numbers. Emer-

gency call numbers (110/112 in Germany) can be placed on a special list – no

matter what your external authorisation – and can thus be dialled at any time. Ask

your system administrator about it.

Keypad Dialling

Some European network operators require the keypad protocol in order to be able

to set features. Depending on the system configuration, your telephone is auto-

matically set to keypad dialling during a call. If not – before dialling – you have to

switch your device and enter the codes stipulated by the network operator. These

are then directly forwarded to the exchange and evaluated there. You usually

receive an announcement in response. Please contact your system administrator if

you have questions regarding this function.

A*12

Now your telephone has been switched to the keypad protocol. Now you can

enter the keypad codes.

Note

This setting is deleted once again when the call is completed!

Least Cost Routing (LCR)

For every outgoing external connection, your system automatically makes a con-

nection – via LCR – to a network operator defined by the system administrator. If

you do not use this preferred connection and for a single call would like to select a

network operator yourself (call by call), switch LCR off before making the call

(please refer to the “LCR off” menu entry in the Menu when Idle starting on

page 40 section). This is only necessary if LCR has been configured for you on the

OpenCom 100 / Aastra 800. For more information, consult your system adminis-

trator.

Note

The baby call and external call forwarding are not automatically conducted via

preferred connections. This is where you can prefix the codes of the desired

network operator when entering the call number, when you wish to use a

different network operator than the standard one.