Spectrum Brands TELEMATRIX SP-400 - Manual (Page 33)

Using The Mute Feature
A “MUTE” key is provided to allow
privacy during a background conversation.
When the “MUTE” key is activated, the
microphones in the handset and/or headset
are disabled.
When the “MUTE” key is activated, the
caller will not hear voice. When activated,
the LED above the Mute key will illuminate
steadily RED.
To de-activate, press the “MUTE” key
again.
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