AASTRA 4425 IP Vision (SIP) for MX-ONE User Guide - Manual (Page 42)

43 Dialog 4425 IP Vision
Outgoing Calls
When you receive a busy tone
If you call an extension and receive a busy tone, or get no answer,
or all external lines are busy, you can use any of the following
methods:
Callback
If a called extension is busy or there is no answer: Ô
Callback Press
or 6
press.
It can take several seconds before the procedure is executed.
A confirmation tone is heard.
Note: You can also press: CallBack (see display). d
Replace the handset to finish the procedure.
You are called back (recall ring signal) when the ongoing call is finished
or the next time a new call is finished. 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 extension.
Note: Callbacks can be activated on several extensions at
the same time.
If all external lines are busy (after dialing the digit or digits to get a
line): Ô
Callback Press,
or 6
press.
Note: You can also press: CallBack (see display). z #
Dial the external number and press.
Call Press.