2N Lift8 v1.0 User Manual
Page 76
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76
Warning
When an announcement is being played or voice communication is taking place,
the L8 will not necessary identify these commands reliably. This phenomenon is
caused by the actual principle of function of the telephone line, where DTMF
signalling is mixed with the call, and it may be masked by certain tones in
speech. This phenomenon is not a fault of the product. It occurs very rarely.
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