41-001382-05 REV03 – 07.2014 143Additional FeaturesThis section describes additional features you can use on the 9480i phone.Display DTMF DigitsA feature on the 9480i phone allows users to enable or disable DTMF (dual-tone multi-frequency) digits to display to the IPphone when using the keypad to dial, or when dialing from a softkey or expansion module key. DTMF is the signal sentfrom the phone to the network that you generate when you press the phone’s touch keys. This is also known as “touch-tone” dialing. Each key you press on your phone generates two tones of specific frequencies. One tone is generated from ahigh-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 or from a softkey, display tothe IP phone’s LCD display. This parameter is disabled by default (no digits display when dialing). You can enable the "Dis-play DTMF Digits" parameter using the Aastra Web UI.Configuring Display of DTMF DigitsUse the following procedure to configure the display of DTMF digits on the IP phone.Aastra Web UINote:"Display DTMF Digits" is disabled by default.1. Click Basic Settings->Preferences->General.2. Enable the "Display DTMF Digits" field by checking the check box.Disable this field by unchecking the box). Default is disabled.3. Click Save Settings.
