AASTRA 4223 Professional for BusinessPhone User Guide - Manual (Page 38)

During Calls
BusinessPhone — Dialog 4223 Professional / Dialog 3213 38
Callback
You are called back, if you have transferred an external call and the
other extension has not answered the call within a certain time.
Your telephone will ring again.
Call Waiting
If you hear the Call Waiting tone during an ongoing conversation,
another person is trying to contact you.
To terminate the ongoing call and answer the waiting
call
d
Replace the handset to finish the ongoing call.
The waiting call is signalled on your phone.
u
Lift the handset to answer the new call.
Or: Â d
Press and replace the handset to answer in handsfree mode.
Conference
You have an ongoing conversation and you want to establish a
telephone conference.
Ô
Press.
z
Enter the number of the third party.
conf
Press to establish a three party conference (see display).
Now you have established a three party conference. To indicate the
Conference, all conference members will hear a periodical
Conference tone.
Inquiry or
Line 2