Operational Features
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41-001160-04 Rev 02, Release 2.5
IP Phone Administrator Guide
Display DTMF Digits
A feature on the IP phones allows users and administrators 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 or programmable 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 or from a 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 configuration
files or the Aastra Web UI.
Configuring Display DTMF Digits
Use the following procedures to configure the suppression of DTMF playback on
the IP phone.
Configuration Files
For specific parameters you can set in the configuration files, see Appendix A, the section,
“Display DTMF
Digits Setting”
on
page A-199.
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