The Polycom 550 SoundPoint is a four-line SIP phone. This phone is equipped with Polycom Voice HD, where the user can expect to experience echo-free sound and crystal-clear voice communication. Features: Four lines with backlit 320 x 160-pixel grayscale graphical LCD Interoperability with leading SIP-based IP PBX and Softswitch platforms Polycom HD Voice technology, including support of G.722 wideband codec, Acoustic Clarity Technology 2, and a systems design optimized for Polycom HD Voice technology Advanced functionality, including shared lines, busy lamp field, presence, and XHTML application.
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