switel DE31 Series, Operating Instructions Manual

Page: 116 / 128

Telephoning
Forwarding external calls internally
HS1: 2 sec. Dial the internal call number of the
handset e.g.
required during the external call
HS2: Take the internal call on the other
handset
HS1: Transfer the call
If the handset called does not reply, the external call is transfer-
red back to the calling handset after 30 sec.
Making conference calls
An external call can be transferred to another internal handset for a con-
ference call.
HS1: 2 sec. Dial the internal call number of the
handset e.g.
required during the external call
HS2: Take the internal call on the other
handset
HS1: Open the menu
or CONFERENCE ,
Start the conference call
HS1 / HS2: End the conference
Setting the receiver volume
The volume can be adjusted to one of 5 levels during a call.
or Select the required volume
Displaying the duration of a call
The duration of a call is displayed in hours, minutes and seconds during
the call.