Making calls 115
Carry out DMTF-suffix/dial tone
In order to control devices, such as answering machines or automatic informa-
tion systems, you can send out DTMF signals (Dual Tone Multi-Frequency).
Please ask your administrator to send the codes for the DTMF tones.
Rollover
You can set up the volume for all notification, which occur during your call. For
more information, see ”Volumes” Page 202.
Ending the call also deactivates DTMF suffix dialing.
Your system can also be configured in such a way that you can start the
DTMF dial-up immediately after establishing the connection. You can also
set-up a key for DTMF dialing.
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