Ericsson 4187 Plus User Manual

Outgoing Calls

24

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 these methods:

If a called extension is busy or there is no answer:

6

It can take several seconds before the procedure is executed.

Note: France, Finland and Sweden, press 

5

d

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. 

u

The system calls the extension.

Note: Callbacks can be activated on several extensions at 

If all external lines are busy (after dialing the digit or digits to get a 

line):

6

Note: France, Finland and Sweden, press 

5

z #

d

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.

u

The system calls the external number.

Note: Only one Callback can be activated on a busy