Lines (Directory Numbers)

• Up to 2 lines with up to 2 calls per line

Display

• 102 x 33 pixel backlit grayscale graphical LCD
• LED backlight with custom intensity control

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
• Dedicated microphone mute key

Headset and Hearing Aid Compatibility

• Dedicated RJ-9 headset port – amplified headsets are recommended
• Compliant with ADA Section 508 Recommendations: Subpart B 1194.23 (all)
• Hearing Aid Compatible (HAC) handset for magnetic coupling to approved HAC hearing aids
• Compatible with commercially available TTY adapter equipment

Audio Features

• Polycom HD Voice technology delivers life-like voice quality for each audio path – the handset, the hands-free speakerphone and the optional headset 1
• Full-duplex hands-free speakerphone
• Type 1 compliant with IEEE 1329 full duplex standards
• Codecs: G.722 (wideband), G.711 µ/A and G.729A (Annex B)
• 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 cancellations
• Background noise suppression

Call Handling Features

• 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, Polish, Russian, Slovenian, Spanish, Swedish

Protocol Support

• IETF SIP (RFC 3261 and companion RFCs)

Network and Provisioning

• Two 10/100 Mbps Ethernet port
• Manual or dynamic host configuration protocol (DHCP) network setup
• Time and date synchronization using SNTP • FTP/TFTP/HTTP/HTTPS server-based central provisioning for mass deployments
• Provisioning and call server redundancy supported
• Web portal for individual unit configuration
• QoS Support – IEEE 802.1p/Q tagging (VLAN), Layer 3
• TOS and DSCP
• Network Address Translation (NAT) support for static configuration and “Keep-Alive” SIP signaling
• RTCP support (RFC 1889)
• Event logging
• Syslog
• Local digit map
• Hardware diagnostics
• Status and statistics reporting

Security

• Transport Layer Security (TLS)
• Secure Real-time Transport Protocol (SRTP) • Encrypted configuration files
• Shipped with X.509 certificate installed
• 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 (Class2)
• 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 B
• VCCI Class B
• EN55024
• ROHS compliant
• GOST-R
• A-Tick
• C-Tick
• CCC
• KCC

Safety

• CE Mark
• EN 60950-1
• IEC 60950-1
• UL60950-1
• CAN/CSA-C22.2 No.60950-1-03
• AS/NZS 60950-1