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Model 6755i IP Phone User Guide 213
Additional Features
Display DTMF Digits
A feature on the 6755i phone allows users to enable or disable DTMF (dual-tone multi-frequency)
digits to display to the IP phone when using the keypad to dial, or when dialing from a softkey,
programmable key, or expansion module key.
DTMF is the signal sent from the phone to the network that you generate when you press the
phone’s touch keys. This is also known as “touchtone” dialing. Each key you press on your phone
generates two tones of specific frequencies. One tone is generated from a high-frequency group of
tones and the other from a low frequency group.
If you enable the Display DTMF Digits parameter, the digits you are dialing from the keypad,
softkey, or programmable key, display to the IP phone’s LCD display. This parameter is disabled
by default (no digits display when dialing).
You can enable the "Display DTMF Digits" parameter using the Aastra Web UI.
Configuring Display of DTMF Digits
Use the following procedure to configure the display of DTMF digits on the IP phone.
1. Click on Basic Settings->Preferences->General.
Aastra Web UI
Note: "Display DTMF Digits" is disabled by default.