Polycom SoundPoint® IP 330 and 320  Excellent Sound Quality And An Enterprise-Grade Feature Set. Two-line entry-level phones. Superb sound quality and full-duplex speakerphone performance with Polycom Acoustic Clarity Technology. Enterprise-grade feature set. Easy to configure and use. Integrated Power over Ethernet support. Interoperability with leading IP PBX and Softswitch platforms SIP.
Key Features:
Two lines
Full-duplex IEEE 1329 Type 1-compliant speakerphone with Polycom Acoustic Clarity Technology
102 x 33-pixel graphical LCD
Integrated 802.3af PoE support
Two-port 10/100 Ethernet switch - SoundPoint IP 330
(Single 10/100 Ethernet port - SoundPoint IP 320)
Small footprint SoundPoint® IP 550  Cutting-Edge SIP Feature Set Meets Polycom HD Voice. Four-line manager's phone. Revolutionary voice quality with Polycom HD Voice. Cutting-edge SIP features. Backlit, easy-to-read LCD with support of Asian characters. Interoperability with leading SIP-based IP PBX and Softswitch platforms SIP.
Key Features:
Four lines
Polycom HD Voice technology, including support of G.722 wideband codec
Acoustic Clarity Technology 2, and systems design optimized for HD Voice
Advanced functionality, including shared lines, busy lamp field, presence, and XHTML application
Backlit 320 x 160-pixel grayscale graphical LCD
Integrated IEEE 802.3af Power over Ethernet (PoE) support SoundPoint® IP 650  High-Performance IP Phone with Polycom HD Voice. Six-line executive phone. Revolutionary voice quality with Polycom HD Voice. Advanced, cutting-edge features and applications. Expandable to support three Expansion Modules. Interoperable with leading SIP-based IP PBX and Softswitch platforms SIP.
Key Features:
Six lines (standalone) / 12 lines (with the Expansion Module)
Polycom HD Voice technology, including support of G.722 wideband codec
Acoustic Clarity Technology 2, and systems design optimized for HD Voice
Advanced functionality, including shared lines, busy lamp field, presence, and XHTML applications
Support of up to three SoundPoint IP Expansion Modules
Backlit 320 x 160-pixel grayscale graphical LCD
Integrated IEEE 802.3af Power over Ethernet (PoE) support
USB port for future applications SoundStation® IP 7000  Astounding voice quality and clarity from the world's most advanced IP conference phone. Polycom HD Voice for outstanding clarity. Unparalleled flexibility and expandability. Large, high-resolution LCD display for advanced applications. Integrated Power over Ethernet (PoE). Interoperable with leading SIP-based IP PBX and Softswitch platforms.
Key Features: Polycom HD Voice for high-fidelity calls at up to 22 kHz
Polycom's patented Acoustic Clarity Technology
20-foot microphone pickup, and even more with optional expansion microphones
Flexible configuration options - multi-unit connectivity
Expansion microphones and future integration with Polycom HDX
Strong, robust SIP software
Robust interoperability - compatible with a broad array of SIP call platforms
Large high-resolution display with XHTML microbrowser | 
