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32 Advanced telephoning
In a three-party call, a caller is connected to two handsets on the base station.
The three-party call is sometimes also known as a conference call.
You have an external call and you wish to involve a third person with a
handset on the base station:
1. Press
INT to put the external call on hold.
You hear the dial tone.
2. Dial the internal number of the handset you want.
If the handset is not available or engaged, you hear the engaged tone. You
can return to the external call by pressing
INT again. If the handset is free,
you hear it ring.
3. Wait for a connection.
4. Press 3 to connect the three parties in the conversation.
If your handset is set to pulse dialling, you can switch to tone dialling if
required. For example: to control a teleservice such as voice mail.
To switch the handset to tone dialling during a call:
Route:
DialMode » GoToDTMF
• Select
GoToDTMF
and press YES.
The handset now uses tone dialling.
When you hang up, the handset goes back to pulse dialling.
To select either tone or pulse dialling permanently, please refer to “Pulse or
tone dialling” on page 94.
The tones transmitted by the handset may be too short for some interactive
information services. If you have problems, you can temporarily change the
length of the tones.
If the handset is set to long tones, the tones are transmitted for the same length
of time as you keep the keys pressed down.
To switch the handset to long tones during a call:
Route:
DialMode » DTMF-Long
• Select
DTMF-Long
and press YES.
The handset switches to long tones for the duration of the call.
MAKING A THREE-PARTY CALL
SETTING THE HANDSET TO TONE DIALLING
SETTING THE HANDSET TO LONG TONES