Increase your productivity and comfort. Using a telephone and headset solution can increase your productivity by allowing you to handle other tasks while talking on the phone. Additionally, the use of a headset can reduce neck, upper back, and shoulder tension allowing for a more comfortable work environment. Experience the freedom, comfort and great sound quality of a Plantronics Headset Telephone Solution. Do more. Comfortably. Plantronics T10 Headset Telephone is a complete single-line telephone with headset solution. This convertible headset is adjustable for over-the-head stability or over-the-ear convenience. Adjustable volume and tone control allow for superior sound. It provides easy installation connecting to existing telephone jacks.