User Manual

4. AUDIO
131
LZT 123 7263 R1A
• <noise_reduction> sets the noise reduction functionality in the
phone.
• <side tone> activates the side tone functionality in the phone.
• <short_echo_canceling> sets the short echo canceling functionality
in the phone.
• <ATMS_gain> indicates the gain of the signal that is sent to the
phone.
• <class> indicates the Hands Free class. The class parameter is used
to fine adjust some parameters in the internal voice algorithm.
• <ATMS_sensitivity_deviation_from_class> indicates the ATMS
sensitivity deviation from a given class. This parameter is used, for
example if an HF product of a certain class has a new microphone
that is more sensitive than the old one.
• <AFMS_sensitivity_deviation_from_class> indicates the AFMS
sensitivity deviation from a given class. This parameter is used, for
example if an HF product of a certain class has a new speaker that is
more sensitive than the old one.
Note! The last three parameters in this command (i.e. <class>,
<ATMS_sensitivity_deviation_from_class>,
<AFMS_sensitivity_deviation_from_class>) are included to give the
internal voice algorithm additional information to perform optimally. It
is up to the MS to decide how this additional information is used.
<internal_voice_alg> Description
0 None
1 Semi Duplex
2 Full Duplex
(Note! the internal hands free algorithm in the
MS contains echo cancelling)
<noise_reduction> Description
0 Off
1 On
<side_tone> Description
0 Off
1 On
<short_echo_canceling> Description
0 Off
1 On