User guide

Incoming Calls
Dialog 4223 Professional/Dialog 4225 Vision30
Answer a second call during an ongoing
call
If your phone is preprogrammed with a Free on 2nd key, you can
receive another call, if this function is activated.
Free on 2nd Ô Press to activate/deactivate.
When Free on 2nd is active the lamp is on.
Note: Function key preprogrammed by your system
administrator.
You have an ongoing call on Line 1, when Line 2 flashes to indicate
a new incoming call:
Line 2
ÖÔ Press to answer.
The first call is put on hold.
Line 1
ÖÔ Press to switch back to the first call.
The second call is put on hold. You are connected to the first caller.
í Press to terminate the connected call.
Call Waiting
If the calling party has activated Call Waiting, you can receive a
second call even if Free on 2nd is not activated.
To answer the waiting call:
í Press to terminate the connected call.
Your phone will ring to announce the waiting call.
Line
ÖÔ Press the flashing Line key to receive the new call.