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Getting Started
Headset Jack
You can use this telephone
While in headset mode, the volume of headset is controlled by the telephone and the handset’s earpiece and microphone are disconnected.
Ordering a Headset: In the event you wish to purchase a headset for your C440, please contact Plantronics at
Belt Clip
You may choose to use the optional belt clip with your handset.
1.To attach slide belt clip down onto groves. Press the tabs on the belt clip into the slots to attach.
2.To remove, lift one side of the belt clip with your thumbnail and push back.
Hearing Aid Compatibility
The handset has a special coil inside of it to couple the sound to hearing aids equipped with
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