User guide

Outgoing Calls
BusinessPhone – Ericsson Dialog 4187 Plus22
Automatic Callback
You call an extension and receive busy tone or get no answer.
Automatic Callback can also be used if no external line is free.
5 Press.
Verification tone.
Note: The number for Automatic Callback may differ from
country to country, see table “Alternative Programming for
Camp-on, Automatic Callback, Call Pick-up, Intrusion” on
page 69.
d Replace the handset.
You are called back if the extension finishes the ongoing call or the
next time the extension finishes a new call. You have to answer
within eight seconds, otherwise the Callback service is cancelled.
u Lift the handset when you are called back.
The requested extension is called automatically.