13
Call transfer and intercom between two
10 Call transfer and intercom between two handsets

10.1 Call transfer and conference call during an external call

10.2 Internall call (intercom)

11 Troubleshooting
These functions only work when more then one handset (like a Twin/Triple/Quattro
version) is registered to the same base.
1During an external call, press the INT key, followed by the number of the
handset (1-4).
The other handset will start to ring:
When the other handset takes the line you can talk internally. If you hang up,
the external line will be connected with the other handset.
2Press and hold the INT key for 3 seconds. Now you can talk with the
second handset and external line at the same time (conference call).
3Press the INT key again to return to the external call.
4Press the line key when you want to terminate the call.
You cannot make an intercom call between the corded phone and cordless handset.
Only between two cordless handsets.
1In standby, press the INT key, followed by the number of the handset (1-4).
The other handset will start to ring.
2Press the line key to pick up the line.
Now you can talk internally.
3Press the line key when you want to terminate the call.
SymptomPossible cause Solution
No displayBatteries uncharged Check the position of the
batteries
Recharge the batteries
Handset turned OFF Turn ON the handset
No tone Telephone cord badly connected Check the telephone cord
connection
The line is occupied by another
handset
Wait until the other handset
hangs up
Volume of conversation
partner too low
Adjust the volume during the
conversation by pressing the
volume key
Handset ringer volume too
low
Adjust the ringer volume