BusinessPhone – Dialog 4223 Professional / Dialog 3213
Group Features

## Key system

With this function, all (or selected) external lines are represented by pre-programmed keys on all phones. For each external line, a Function key has to be programmed. Which means that you are able to monitor the state of traffic for every programmed external line (e.g. free, busy). You can also establish an external call by pressing the External Line key.

#### Answer an external call

To answer an external call, just press the flashing key. (Depending on the programming of the system, an incoming external call will be announced with a flashing Line key and a ringing signal).

External Line

Press (pre-programmed).

Speech connection with the caller.

#### Make an external call

To initiate an external call, just press the External Line key. The external line will be seized automatically.

External Line

Press a free Line key (pre-programmed).

Dial the desired number.

If you make external calls in this way, you do not have to dial the digit(s) for external call access first.

© Ericsson Enterprise 2003