See also:

Pinch protection
If the closing force exceeds a specific value as a window closes, the closing action is interrupted. The window reopens slightly. Danger of pinching even with pinch protection Even with the pi ...

Telephone
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DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...