3-line IP phone with HD Voice , Da , Da , Da , • 256 x 116 pixel backlit grayscale graphical LCD , • LED backlight with custom intensity control , • Message Waiting Indicator (MWI) LED , • Voice activity detection , •  QoS Support – IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS, and DSCP , •  FTP/TFTP/HTTP/HTTPS4 server-based central provisioning for mass deployments , •  Support for URL syntax with password for boot server , •  Frequency response - 150Hz - 7kHz for handset, optional headset1 and hands-free speakerphone modes , • 10/100Base-TX across LAN and PC ports , • Encrypted configuration files , 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 , • Background noise suppression , Security :• Transport Layer Security (TLS) , •  Compliant with ADA Section 508 Recommendations: Subpart B 1194.23 (all) , • Adaptive jitter buffers , • Local digit map , Lines (Directory Numbers) :Up to 3 lines with up to 8 concurrent calls per line , • Comfort noise fill , •  Network Address Translation (NAT) support – static , •  Codecs: G. 722 (wideband), G. 711 μ/A, G. 729A (Annex B) and iLBC , • Provisioning and call server redundancy supported , • HTTPS secure provisioning , •  Manual or dynamic host configuration protocol (DHCP) network setup , • Digest authentication , • Full-duplex hands-free speakerphone , Protocol Support : • IETF SIP (RFC 3261 and companion RFCs) , • Secure Real-time Transport Protocol (SRTP) , •  Hearing Aid Compatible (HAC) handset for magnetic coupling to approved HAC hearing aids , • Packet loss concealment , • Hardware diagnostics , Headset and Hearing Aid Compatibility : • Dedicated RJ-9 headset port , •  DTMF tone generation/DTMF event RTP payload , • RTCP support (RFC 1889) , • Individual volume settings with visual feedback for each audio path , • Web portal for individual unit configuration , • Support for signed software executables , • Time and date synchronization using SNTP , • Password login , •  Type 1 compliant with IEEE 1329 full duplex standards , Network and Provisioning :• Two-port Ethernet Switch , • Shipped with X. 509 certificate installed , •  Compatible with commercially-available TTY adapter equipment adapter equipment , • Acoustic echo cancellation , • Status and statistics , • Amplified headsets are recommended , • Low-delay audio packet transmission , • Event logging , • Remote missed call notification , • Local three-way conferencing , • Call timer , •  Flexible line appearance (one or more line keys can be assigned for each line extension) , • Intercom , • One-touch speed dial, redial , • Call transfer, hold, divert (forward), pickup , • Busy Lamp Field (BLF) , • Automatic off-hook call placement , • Call waiting , • Called, calling, connected party information , • Distinctive incoming call treatment/call waiting , • Shared call/bridged line appearance , • Do not disturb function , 21.5 x 15 x 16.5 x 6.5 cm , 1.1 kg , • E xternal Universal AC adapter (24VDC/12W) , •  Built-in, auto-sensing IEEE 802.3af Power over Ethernet (Class 2) , • Local feature-rich GUI , Other Features :• Integration with Microsoft LCS 2005 for telephone and presence , • Mute, headset and hands-free speakerphone keys , • 3 line keys with bi-color (red/green) LED , • Wave file support for call progress tones , • Time and date display , •  Compatibility with Microsoft Office Communicator and Windows Messenger 5.1 Clients , • 2 volume control keys , • 3 feature keys , Feature Keys : • 4 context-sensitive soft keys , •  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 , •  User-configurable contact directory and call history (missed, placed, and received) , • Enabled for Polycom Productivity Suite , • Dedicated hold key , • 5 display/menu navigation keys , • 17 dedicated hard keys , • Customizable call progress tones - 1000001639


Denumiri similare la Telefon VOIP HP Poly SoundPoint IP 450 2200-12450-122: Poly SoundPoint IP 450 2200 12450 122, PolySoundPointIP450220012450122, PolySoundPointIP4502200-12450-122, Poly SoundPoint IP 450 2200-12450 122

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