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18 Basic use and settings
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You can select a different ring signal when being called back by the base sta-
tion. For more information, please read “Ringer tones and melodies” on
page 20.
Involving an external party. You have an external call and want to consult
with another external party:
1. Press the
R key to put the external call on hold.
You hear the dial tone.
2. Dial the number for the external party.
If you hear the handset ring, go to step 3
If you hear a congestion tone, return to the first call by pressing the
R key.
3. You have three options:
• Wait until the call is answered. You can now switch back and forth by
pressing the
R key.
• If the call is not answered, return to the external call by pressing the
R
key.
• Continue the call after it has been answered as a three-party call by
pressing 3.
Making a three-party call
You can have a three-party call with two external parties or with one external
party and one internal party. A three-party call is also known as a conference
call.
Involving another handset. You are engaged in an external call and you
wish to involve an internal party.
1. Press
INT to put the external call on hold.
You hear the dial tone.
2. Dial the internal number.
If you hear the handset ring, go to step 3
If you hear a congestion tone, return to the first call by pressing the
INT
key.
3. Wait for a connection.
4. Press 3 to connect all parties.
Involving an external party. You are engaged in an external call and you
wish to involve another external party.
1. Press the
R key to put the external call on hold.
You hear the dial tone.
2. Dial the external number.
If the handset is free, you hear it ring, go to step 3.
If the number you dialled is not available or engaged, you hear the busy
tone. Return to the original call by pressing
R again.
3. Wait for a connection.
4. Press 3 to connect all parties.
Note To make a three-party call with two external parties the second ISDN
telephone line must be available. Only one conference call at a time is possi-
ble. No other calls can be accepted while the conference call is active.