Dtmf – Motorola GM380 User Manual
Page 40
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DTMF
DTMF means Dual Tone Multi Frequency and
is used when the radio is required to operate in
a radio system with an interface to telephone
systems.
You can switch On or Off Permanent DTMF
Mode by using a pre-programmed DTMF
button or via the menu, please refer to page
26.