Operating instructions

72
Telephoning
111
Internal calls
1
Making internal calls
There must be two or more handsets (HS1, HS2, ...) registered on your base station in
order to make internal calls free of charge.
HS1: 3 sec.  Activate the internal call function
e.g.  Dial the internal call number of the
handset required
HS2:  Other handset answers the call
HS1/HS2:  End the internal call
Forwarding external calls internally
HS1: 3 sec.  During an external call
e.g.  Dial the number of the internal handset
HS2:  Other handset answers the call
HS1:  Forward the call
If the handset called does not answer, the external call is returned to the
calling handset after 30 seconds.
Making conference calls
An external call can be transferred to another internal handset for a conference call.
HS1: 3 sec.  During an external call
e.g.  Dial the number of the internal handset
HS2:  Other handset answers the call
HS1: 3 sec.  Start the conference
HS1 / HS2:  End the conference
Setting the receiver volume
The volume can be adjusted to one of 5 levels during a call.
 or  Select a volume level
Boost mode
There are further boosted volume levels in addition to the 5 basic levels;
 Chapter 5. Activate the boost level required to be able to use it.
BOOST MODE Function
OFF Only volume levels 1−5 are available
1
Internal calls are only possible when at least two handsets are registered in the
system; Checking the contents of the package" on Page 95.