Bring affordable Internet telephony to your home office or small business. The SPA901 is perfect for any home or business with a single telephone line. With hundreds of features to support traditional business users, the SPA901 pairs dependable high quality with unparalleled value. Based on the SIP standard, this IP phone has been tested to help ensure that it provides comprehensive interoperability with equipment from voice over IP (VoIP) infrastructure leaders and allows service providers to quickly roll out competitive, feature-rich services to their customers.