Panasonic KX-TS500B single line operation corded landline phone with 6-step electronic handset volume control. This Panasonic landline telephone is call waiting compatible (requires a subscription) and requires no batteries to operate. Handset and ringer volume controls allow you to adjust levels to your liking, and you can switch between tone and pulse dialing modes. A redial button lets you quickly dial the last outgoing number, while the flash button provides access to call waiting. This Panasonic phone is wall-mountable, allowing you to keep countertop space free from unnecessary clutter.