Polycom SoundPoint IP 550 SIP VoIP Desktop Business Digital Telephone 2201-12550-001. The SoundPoint IP 550 is a premium, four-line, SIP desktop phone. It delivers crystal-clear HD voice quality that meets the voice communication needs of even the most discerning users. The phone supports shared call/bridged line appearance, an essential feature for effective phone interaction between busy professionals and their business contacts.

Model Number: SoundPoint IP 550 SIP
Part Number: 2201-12550-001

Features:

- Four lines with backlit 320 x 160-pixel grayscale graphical LCD
- Interoperability with leading SIP-based IP PBX and Soft switch 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
- Compatible with Ring Central
- Compatible with Fonality