rootâ² canal` ther`apy. n. 1. the branch of endodontics that treats disease of the dental pulp. 2. a treatment for such disease in which the pulp is removed and replaced by filling material.
A textphone is a device that enables phone calls to be made using text. Textphone software can be used on a computer to enable it to be used as a textphone.
Often a softphone is designed to behave like a traditional telephone, sometimes appearing as an image of a phone, with a display panel and buttons with which the user can interact. A softphone is usually used with a headset connected to the sound card of the PC, or with a USB phone.