Lines (Directory Numbers)

• Up to 4 lines with up to 24 concurrent calls per line

Display

• 320 x 160-pixel backlit grayscale graphical LCD
• LED backlight with custom intensity control • Message Waiting Indicator (MWI) LED

Feature Keys

• 4 context-sensitive “soft” keys
• 26 dedicated “hard” keys
- 4 line keys with bi-color (red/green) LED
- 8 feature keys
- 6 display/menu navigation keys
- 2 volume control keys
- Illuminated mute key
- Illuminated headset key
- Illuminated hands-free speakerphone key
- Dedicated hold key

Headset Compatibility

• Dedicated RJ-9 headset port - Amplified headsets are recommended

Hearing Aid Compatibility

• 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
• Full-duplex hands-free speakerphone - Type 1 compliant with IEEE 1329 full duplex standards
• Frequency response - 100Hz - 7kHz for handset, optional headset and hands-free speakerphone modes
• Codecs: G.722 (wideband), G.711 µ/A, G.729A (Annex B), 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

• Shared call / bridged line appearance
• Flexible line appearance (one or more line keys can be assigned for each line extension)
• Busy Lamp Field (BLF)
• 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

• Local feature-rich GUI
• Time and date display
• User-configurable contact directory and call history (missed, placed, and received)
• Customisable call progress tones
• Wave file support for call progress tones
• Unicode UTF-8 character support. Multilingual user interface encompassing Chinese, Danish, Dutch, English (Canada / US / UK), French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, Spanish, Swedish

Protocol Support

• IETF SIP (RFC 3261 and companion RFCs)

Network and Provisioning

• Two-port Gigabit Ethernet switch
- 10/100/1000Base-Tx across LAN and PC ports
- Conforms to IEEE802.3-2005 (Clause 40) for Physical Media Attachment
- Conforms to IEEE802.3-2002 (Clause 28) for Link Partner Auto-Negotiation
• Manual or dynamic host configuration protocol (DHCP) network setup
• Time and date synchronisation 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 signalling
• 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)
• Shipped with X.509 certificate installed
• Encrypted configuration files
• Digest authentication
• Password login
• Support for URL syntax with password for boot server address
• HTTPS secure provisioning
• Support for signed software executables

Power

• Built-in, auto-sensing IEEE 802.3af Power over Ethernet
• External Source 48V DC @ 380mA

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
• EN61000-3-2; EN61000-3-3
• ROHS compliant
• Anatel Safety
• CE Mark
• EN 60950-1
• IEC 60950-1
• AS/NZS 60950-1
• UL/C-UL