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5212 IP PHONE REFERENCE SHEET WHAT DO THESE KEYS DO? UP/DOWN ARROW KEYS: Used to turn volume of caller up & down when on a call and to adjust the ringer volume. SPEAKER: Used to activate/deactivate loudspeaker MUTE: Enab
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Document Date: 2016-06-17 01:59:38
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5212 IP PHONE REFERENCE SHEET WHAT DO THESE KEYS DO? UP/DOWN ARROW KEYS: Used to turn volume of caller up & down when on a call and to adjust the ringer volume. SPEAKER: Used to activate/deactivate loudspeaker MUTE: Enab