Get the convenience and flexibility of a custom phone system for an off-the-shelf price with this four-line phone system that expands to up to 16 corded base stations. Easy-to-install system can expand to accommodate the needs of growing businesses. Each base station can also be paired with a cordless accessory handset (sold separately) for added mobility and convenience. Professional features make it easy to manage calls and contacts. Headset and hearing aid compatible.