This Yealink SIP-T33G is a powerful 4-line VoIP business phone IP PBX. With its sleek black color and advanced features, it is perfect for any enterprise networking, servers, or computers/tablets & networking setup. Featuring wideband audio, a speakerphone, and power over Ethernet (PoE), this phone also has an Ethernet (RJ-45) interface for seamless connectivity. The Yealink brand is trusted for its reliable and high-quality products, and the SIP-T33G model is no exception. Get your business communications up to speed with this top-of-the-line VoIP system.