Changing the DTMF pulse duration
Changing the DTMF pulse duration
You can change the DTMF pulse duration (DTMF = dual-tone multi-frequency dialling
method). This may be necessary if an answering machine does not react to signals from your
telephone. A pulse duration of 1000 ms (slow) is required for certain answering machines, 500
ms (average) for others. Your telephone is preset to 100 ms (fast).
Press the "Menu" function key.
Scroll to the Settings menu item.
Confirm your selection.
Scroll to the Dial settings menu item.
Confirm your selection.
Scroll to the DTMF duration (quick) menu item.
Confirm your selection.
Select the desired DTMF pulse duration, e.g. medium.
Confirm your selection.
Customizing the telephone
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