Lines (Directory Numbers)

• Up to 3 lines with up to 2 concurrent calls per line

Display

• 256 x 116-pixel backlit grayscale graphical LCD
• LED backlight with custom intensity control

Feature Keys

• 4 context-sensitive “soft” keys
• 17 dedicated “hard” keys
- 3 line keys with bi-color (red/green) LED
- 3 feature keys
- 5 display/menu navigation keys - 2 volume control keys
- Mute, headset and hands-free speakerphone keys
- Dedicated hold 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
• Full-duplex hands-free speakerphone - Type 1 compliant with IEEE 1329 full duplex standards
• Frequency response - 150Hz - 7kHz for handset, optional headset 1 and hands-free speakerphone modes
• 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 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

• Integration with Microsoft LCS 2005 for telephone 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)
• Customizable 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, Polish, Portuguese, Russian, Slovenian, Spanish, Swedish

Protocol Support

• IETF SIP (RFC 3261 and companion RFCs) Network and Provisioning
• Two-port Ethernet Switch - 10/100Base-TX across LAN and PC ports
• Manual or dynamic host configuration protocol (DHCP) network setup
• Time and date synchronization using SNTP
• FTP/TFTP/HTTP/HTTPS4 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 – static
• RTCP support (RFC 1889) • Event logging
• Local digit map • Hardware diagnostics
• Status and statistics

Security

• Transport Layer Security (TLS) 3
• Encrypted configuration files 3
• Digest authentication
• Password login
• Support for URL syntax with password for boot server 4
• HTTPS secure provisioning 4
• Support for signed software executables 4

Power

• Built-in, auto-sensing IEEE 802.3af Power over Ethernet (Class 2)
• External Universal AC adapter (24VDC/12W) 5

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
• NZ Telepermit
• ROHS compliant
• GOST-R

Safety

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