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Call transfer and intercom between two
9 Call transfer and intercom between two handsets

9.1 Call transfer and conference call during an external call

9.2 Internal call (intercom)

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.
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.