SIP Phone. HD audio on speakerphone and handset-DS-KP8000-HE1

System parameters

• Operating systemEmbedded Linux operation system
• ROM128 MB
• RAM94 MB
• CPUEmbedded processor

Display parameters

• Screen size2.8-inch
• Operation methodPhysical keys
• TypeColorful screen
• Resolution320 x 240

Video parameters

• Video decodingH.264
• Video decoding resolutionQVGA / CIF / VGA / 4CIF / 720P / 1080P

Audio parameters

• Audio compression standardG.711A/U, G.729AB, iLBC, G.722, Opus
• Audio input

  HD voice microphone;

  HAC handset

• Audio outputHD voice speaker (handset/hands-free, 0 ~ 7KHz frequency response)
• Audio qualityVoice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR)/ Voice quality monitoring
• Volume adjustmentAdjustable

Capacity

• Communication Lines6 SIP Lines
• Contact capacity

  Local phonebook (1000 entries)

  Remote phonebook (XML/LDAP, 1000 entries)

• Call log capacityIn/Out/Missed, 600 entries

Network parameters

• Communication protocol

  SIP v1 (RFC2543), v2 (RFC3261) over UDP/TCP/TLS

  RTP/RTCP/SRTP

  STUN

  DHCP

  IPv6

  PPPoE

  L2TP

  OpenVPN

  SNTP

  FTP/TFTP

  HTTP/HTTPS

  TR-069

• Wired network10/100 Mbps self-adaptive
• Wi-Fi standardNA

Device interfaces

• Network interface2 RJ-45 10/100 Mbps self-adaptive
• Power supply inputDC power input
• Communication interface2 RJ-9 ：handset x1, headset x1

General

• Button37 Keys: 3 line keys (BLF keys) with LED indicator light; 2 Keys for with LED indicator light,including: MWI/handset 8 keys, including: Hold/Transfer/Conference/Contact/CallLog/Status/Redial/Mute 4 soft keys 4 navigation keys 1 OK key 12 standard phone digits keys 2 volume control keys (Up/Down) 1 hands-free key
• Installation

  Desktop stand (angles 1: 45°):

  Wall-mounted

• IndicatorRed status indicator light for call and message waiting indication
• Working temperature0 °C to 45 °C (32 °F to 113 °F)
• Working humidity10% to 95% (no-condensing)
• DimensionsDesktop stand (angles 1: 45°): 169 mm x 186.3 mm x 174.5 mm; Desktop stand (angles 2: 50°): 169 mm x 177.6 mm x 183.7 mm; Wall-mounted: 169 mm x 115.6 mm x 212.5 mm
• Power supplyIEEE802.3af, Standard PoE,12 VDC
• Application environmentIndoor
• Power consumptionPower consumption (PoE): 1.78 W ~ 5.92 W; power consumption (adapter): 1.28 W ~ 4.31 W
• LanguageEnglish, Simplified Chinese, Traditional Chinese, Russian, Italian, French, German. Hebrew, Spanish, Catalan, Basque, Galician, Turkish, Hungarian, Slovenian, Czech, Korean, Dutch, Ukrainian, Portuguese, Polish