OvisLink Dialpad Telephone with Single Ear Headset for Call Center Connect to regular phone line and VoIP adapters. Simple to use, Small in size, No need battery nor power adapter. If you work all-days on the phone and need better voice quality for your ear, this is the call center telephone set (dialer keypad telephone with headset) you need. The telephone and headset together provide you with Solid , Clear Voice Quality, without electronics noise. Telephone set comes with dial keypad telephone, single ear call center headset and Quick Disconnect cord. 2 Years Warranty included.