Lines (Direct Numbers) •	 Up to six lines (standalone mode) •	 Up to 34 lines with Color Expansion Module(s) SoundPoint IP Color Expansion Module Support •	 The PoE version supports one Color Expansion  Module •	 The PSU version supports up to three Color  Expansion Modules Display •	 320 x 160 backlit color graphical LCD  •	 LED backlight with custom variable intensity  control Feature Keys •	 4 context-sensitive “soft” keys •	 26 dedicated “hard” keys    -6 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 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  •	 Compatibility 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 headset 1  •	 Full-duplex hands-free speakerphone - Type 1 compliant with IEEE 1329 full duplex  standards  •	 Frequency response - 150Hz - 7kHz for handset,   headset1 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  •	 Enabled for the Polycom Productivity Suite •	 Integration with Microsoft LCS 2005 for  telephone and presence 3  - Compatibility with Microsoft Office  Communicator and Windows® Messenger 5.1  Clients Universal Serial Bus (USB)  - Full Host Controller  - Compliant with OHCI 1.1 specification  - Support for Full-speed and Low-speed  peripherals  - Type-A receptacle interface  •	 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 Gigabit Ethernet switch: - 10/100/1000Base-Tx across LAN and PC ports  - Conformant to IEEE802.3-2005 (Clause 40)  for Physical Media Attachment - Conformant to IEEE802.3-2002 (Clause 28)  for Link Partner Auto-Negotiation  •	 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  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 •	 External Universal AC adapter (included 48V DC) 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  •	 ROHS compliant Safety •	 UL 60950 •	 CE Mark  •	 CAN/CSA-C22.2 No. 60950  •	 EN 60950-1  •	 IEC 60950-1  •	 AS/NZS 60950  |