Yealink SIP-T41S - VoIP phone with caller ID - 3-way call capability - SIP, SIP v2 - 6 lines

Efficient installation and provisioning. The Yealink T4S series supports efficient provisioning and effortless mass deployment with Yealinks Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings, which makes the T4S series simple to deploy, easy to maintain and upgrade. HD audio. Being a totally open, highly versatile audio codec, Opus, is designed to perform a higher HD audio quality than other wideband codecs in a high network bandwidth; however, if your current network quality is poor, Opus can provide you with a better audio quality than other narrowband codecs. And its hearing aid compatible (HAC) handset helps the person who is with hearing loss to hear the voice more clearly. Easy customization and high expansibility. With a USB port, the SIP-T41S is your ideally powerful and expandable office phone with Bluetooth, Wi-Fi and USB recording features. It has three pages of flexible buttons which can be programmed with up to 15 paperless DSS keys.