The four-line Sound Point IP 550 desktop phone delivers calls of unprecedented richness & clarity & supports a comprehensive range of cutting-edge features. The Sound Point IP 550 desktop phone features Polycoms revolutionary HD Voice technology that incorporates wideband audio for over twice the voice clarity; Polycoms patented Acoustic Clarity Technology for crystal-clear, noise- & echo-free sound, plus best-in-class system design for high-fidelity, faithful voice reproduction. The Sound Point IP 550 desktop phone delivers advanced features & capabilities, such as shared lines, BLF, presence, & buddy lists. The Sound Point IP 550 phone also boasts an integrated XHTML micro-browser for productivity-enhancing Web-based applications. Add the support of four lines, a backlit, high-resolution, easy-to-read graphical display & flexible customizations options, & it becomes clear why the Sound Point IP 550 is certain to meet the needs of the most demanding managers & professionals. The Sound Point IP 550 desktop phone is engineered to make installation, configuration, & upgrades as simple & efficient as possible. The phones built-in IEEE 802.3af Po E circuitry & a dual-port Ethernet switch enable flexible deployment options & savings on cabling expenses.