The SIP-T41S is a feature-rich business tool for superior communications and extended functionality. It offers a faster, more-responsive interface than the T41P and several performance-enhancing functions. It's a six-line IP phone that comes with built-in programmable keys to enhance productivity. The SIP-T41S with Optima HD Voice technology and wideband codec of Opus delivers superb audio quality and crystal clear voice communications. With an all-new USB port, the SIP-T41S boasts unpar