Motorola TETRA CEP400 - Speaker Control Key; Volume Adjustment Mode; Audio Profile; Howling Suppression

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Speaker Control Key
Press to activate the earpiece (low audio), PHF (low audio) or
speaker (high audio), depending on the menu settings.
Volume Adjustment Mode
The Service Provider can enable Volume Adjustment Mode feature.
All the settings regarding Individual mode are adjustable
and retained even if the user switches back to Common mode.
In Common mode the user adjusts all the Volumes at the same
time.
To change the volume setting or settings, press >Setup
> Set Volume.
Audio Profile
An audio profile is a profile that adjusts the audio parameters of the
terminal to fit its current operating environment.
To select an Audio Profile, press and select Setup > Audio
> Audio Profile. Scroll and choose your required template.
Howling Suppression
Howling Suppression is a mode of operation that eliminates howling
effect.
To enable or disable Howling Suppression, press and select
Setup > Audio > Howling Supr. Scroll and choose respectively
Enabled or Disabled.
Type of Call Menu Setting Key Use
Simplex call
(Group*/Private)
Menu > Setup > Audio
> Audio Toggle > Spkr Cntrl
Speaker On/Off for Group
and Private Calls
Menu > Setup > Audio
> Audio Toggle
>AlwaysLoud
Speaker On/Off for Private
Call
Duplex call
(Private/Phone/
PABX)
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Controls speaker/earpiece
of the on-going call
* In an Emergency Group Call, the voice sounds from the speaker regardless
of the speaker setting.
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