Lines (Directory Numbers)

• Up to 2 lines with up to 8 simultaneous calls Display
• 102 x 33 pixel-graphical LCD
• Message Waiting Indicator (MWI) LED Feature Keys
• 3 context-sensitive “soft” keys
• 2 line keys with bi-color (red/green) LED
• 2 feature keys (“Menu” and “Dial”)
• 4-way navigation key cluster with center “Select” key
• 2 volume control keys
• Dedicated hold key
• Dedicated headset key
• Dedicated hands-free speakerphone key
• Optional Messages Key
• Dedicated microphone mute key
• Dedicated 2.5-mm headset port compatible with most monaural mobile phone headsets

Headset and Hearing Aid Compatibility

• Compliant with ADA Section 508 Recommendations: Subpart B 1194.23 (all)
• Headset Compatibility
• Hearing Aid Compatible (HAC) handset for magnetic coupling to approved HAC hearing aids
• Compatible with commercially-available TTY adapter equipment

Audio Features

• Full-duplex hands-free speakerphone with Polycom
• Acoustic Clarity Technology - Type 1 compliant with IEEE 1329 full duplex standards
• Frequency response - 300Hz - 3300Hz for handset, headset and hands-free speakerphone modes
• Codecs: G.711 μ/A, G.729A (Annex B), and iLBC
• Individual volume settings with visual feedback for each audio path
• Voice activity detection
• Comfort noise fill
• DTMF tone generation / DTMF event RTP payload
• Low-delay audio packet transmission • Adaptive jitter buffers
• Packet loss concealment
• Acoustic echo cancellation
• Background noise suppression

Call Handling Features 1

• Shared call / bridged line appearance
• Flexible line appearance (one or more line keys can be assigned for each line extension)
• Distinctive incoming call treatment / call waiting
• Call timer
• Call transfer, hold, divert (forward), pickup
• Called, calling, connected party information • Local three-way conferencing
• One-touch speed dial, redial
• Call waiting
• Remote missed call notification
• Intercom
• Automatic off-hook call placement
• Do not disturb function

Other Features

• Interoperability with Microsoft® LCS 2005 for telephony and presence 3 - Compatibility with Microsoft Office Communicator and Windows® Messenger 5.1 Clients • Enabled for Polycom Productivity Suite
• Local feature-rich GUI
• Time and date display
• User-configurable contact directory and call history (missed, placed and received)
• Wave file support for call progress tones
• Unicode UTF-8 character support. Multilingual user interface encompassing Danish, Dutch, English (Canada/US/UK), French, German, Italian, Norwegian, Russian, Spanish, Swedish

Protocol Support

• IETF SIP (RFC 3261 and companion RFCs)

Security

• Transport Layer Security (TLS)
• Secure Real-time Transport Protocol (SRTP)
• Shipped with X.509 certificate installed
• Encrypted configuration files
• Digest authentication
• Password login
• Support for URL syntax with password for boot server
• HTTPS secure provisioning
• Support for signed software executables

Power

• Built-in, auto-sensing IEEE 802.3af Power over Ethernet (Class 1)
• External universal input AC adapter (optional 4 ; 24V DC @ 500mA)

Approvals

• FCC Part 15 (CFR 47) Class B
• ICES-003 Class B
• EN55022 Class B
• CISPR22 Class B
• AS/NZS CISPR 22 Class
• VCCI Class B
• EN55024 Class B
• EN61000-3-2; EN61000-3-3; EN-61000-6-1
• ROHS compliant
• Anatel
• GOST
• C-tick
• CCC Safety
• CE Mark
• EN 60950-1
• IEC 60950-1
• NRTL • CAB/CSA-C22.2 No. 60950-1-03
• AS/NZS 60950-1