Operation Manual

The system telephone is designed for being connected to the internal ISDN connection of pabx systems.

When operated at these pabx systems, your telephone offers you a variety of typical features. For example:

Dialing from the pabx telephone directory (see page 15).

Message and Intercom (see page 20, 21 ).

Special function keys (see page 42).

Access to the system menu of the pabx (see page 47).

Information:

Please refer to the operating instructions of your PABX to determine whether these typical systemfeatures are pro

vided with this particular telephone.

Function keys

The system telephone is equipped with five function keys, which you can program on two levels with different

functions.

Each key is equipped with two-color LED that can be used to display the active function. Each color is assigned to a

particular level for the function key.

Function key examples

Direct dialing buttons (see page 16)

DTMF/ keypad sequences (see page 23)

Defining the MSN extension number for the next call (MSN assignment)

You can conduct an internal or external call such that a defined number (MSN) is transferred from your telephone to

the party you are calling. This number must have been entered previously in your telephone.

Line keys

AB channel for anexternal ISDN connectionis configured for a linekey. When thiskey is pressed, hands-free calling

is activated automatically and the corresponding B channel of the ISDN connection is accessed. You will hear the

external dial tone.

If an external call is signaled at a different in-house telephone you can accept this call by pressing the line key.

Trunk group buttons

If several ISDN ports can be compiled to form trunk groups you can assign them to one trunk group key. When this

key is pressed, hands-free calling is activated automatically and the corresponding B channel of the ISDN trunk

group is accessed. You will hear the external dial tone.

Extension keys

You can configure dialing to an internal extension using an extension key. When the corresponding key is pressed

hands-free calling is activated and the listed subscriber called.

If a call for the listed subscriber is signaled you can accept the call by pressing the extension key.

Waiting calls are indicated by flickering of the line key LED. The call can be picked up by any member within the

group just by pressing the key.

Connection keys

Function keys at the system telephone or expansion can be configured in addition to the softkeys »Call 1.. « for

executing broker‘s calls. In this case, two to four of these keys must be configured.

System telephony Function keys