• Backlit 8-level grayscale graphical LCD (208 x 104) resolution
• Voicemail support
• WebKit-based browser
• Adjustable base height
• Unicode UTF-8 character support
Multilingual user interface including Chinese, Danish, Dutch, English (Canada/US/UK), French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Slovenian, Spanish, and Swedish
• Polycom HD Voice technology delivers life-like voice quality for each audio path-handset, the hands-free speakerphone, and the optional headset
• Polycom Acoustic Clarity technology providing full-duplex conversations, acoustic echo cancellation and background noise suppression
- Type 1 compliant (IEEE 1329 full duplex)
• Frequency response - 150 Hz - 7 kHz for handset, optional headset and handsfree speakerphone modes
• Codecs: G.711 (A-law and μ-law), G.729AB, G.722, G.722.1, iLBC
• Individual volume settings with visual feedback for each audio path
• Voice activity detection
• Comfort noise generation
• DTMF tone generation (RFC 2833 and in-band)
• Low-delay audio packet transmission
• Adaptive jitter buffers
• Packet loss concealment
Headset and Handset Compatibility
• Dedicated RJ-9 headset port
• Hearing aid compatibility to ITU-T P.370 and TIA 504A standards
• Compliant with ADA Section 508 Subpart B 1194.23 (all)
• Hearing aid compatible (HAC) handset for magnetic coupling to hearing aids
• Compatible with commercially-available TTY adapter equipment
• 6 lines (programmable line keys)
• Shared call/bridged line appearance
• Busy Lamp Field (BLF)
• Flexible line appearance (one or more line keys can be assigned for each line extension)
• Distinctive incoming call treatment/call waiting
• Call timer and call waiting
• Call transfer, hold, divert (forward), pickup
• Called, calling, connected party information
• Local three-way audio conferencing
• One-touch speed dial, redial
• Remote missed call notification
• Do not disturb function
• Electronic hook switch capable
• Local configurable digit map/dial plan