Perfect for the home or a home office, the Plantronics CT14 cordless telephone system is the new version of Plantronics CT12 that now has longer talk time: up to 10 hours compared to the 5.5 hours of the CT12. It is also equipped with DECT 6.0 and runs on the 1.9GHz frequency, which means interference-free superior sound! The CT14 is a single-line telephone that plugs into a standard telephone jack. It comes with a remote that you can carry around with you for the ultimate productivity. It can also be used with Partner Phones as a multi-line headset. Partner phone setup instructions.