Sending Dtmf Signals; Mute, So That Your Party Cannot Hear You - Alcatel-Lucent IP Touch 4028 User Manual

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Sending DTMF signals

2.12
Even if your system is not touchtone by default, during a call you sometimes have to send DTMF signals, to a voice server, an
automated attendant or a remotely consulted answering machine.
¤DTMF
Paul
in conversation
You are on a call with To activate
the destination
number
The feature is automatically cancelled when you hang up.

Mute, so that your party cannot hear you

2.13
You can hear your party but he/she cannot hear you:
Paul
in conversation
You are on a call Disable microphone
with the destination
number
The key is no longer lit
Resume the call
Using your telephone
The key lights up
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