AASTRA 4425 IP Vision (SIP) for MX-ONE User Guide - Manual (Page 43)

Outgoing Calls
Dialog 4425 IP Vision 44
d
Replace the handset to finish the procedure.
When an external line becomes free you will be called back (recall
ring signal). You have to answer within eight seconds, otherwise
the Callback service is cancelled. While waiting for the Callback,
you can make and receive calls as usual. u
Lift the handset when you are called back.
The system calls the external number.
Note: Only one Callback can be activated on a busy
external line.
Cancel any single Callback #37* z #
Dial, enter the extension number and press.
Note: To cancel a single Callback on a specific external
line, dial the digit or digits to get a line instead of the
extension number.
Call Press.
Cancel all Callbacks #37#
Dial.
Call Press.
Activate Call Waiting
If you urgently wish to contact a busy extension or external line, you
can notify by a Call Waiting signal. Ô
Call Waiting Press,
or 5
press.
Note: You can also press: CallWaiting (see display).
Keep handset off hook. When the called extension or the external
line becomes free, it will be called automatically.