Basics

• Operating system Linux
• 3-year warranty
• Wall mountable¹ 
• Part number/s​​​​​
  • D862 | PN 00004535

Dimensions and weight​​​​​​

• Dimensions (D x W x H, approx.)
  • ​​45 mm x 243 mm x 210 mm w/o footstand
  • 165 mm x 243 mm x 193 mm  with footstand
• Weight (approx.)
  • ​​​1.12kg with footstand

Display and indicators

• Display
  • TFT liquid crystal display (LCD), tiltable, truecolour,
  • backlit
  • Display size (W x H) 110 mm x 62 mm
  • 5  (127 mm) display size (diagonal)
  • Resolution 1280 x 720 Pixel
     
• 13 LED indicators
  • Call indication (1 x red LED)
  • Message waiting indication (MWI) (1 x red LED
    message key)
  • Function key indication (8 x multicolour LEDs)
  • Audio key indication (1 x red LED, 2 x green LED)

Directory support and call features​​

• 8 SIP identities / accounts
  • Up to 8 simultaneous calls
• Directory support
  • LDAP (server-based directory)
  • Local directory with up to 10,000 entries
  • Import/export phone book (CSV, XML)
  • XML phonebook support
• Outgoing call features
  • Speed dialling via function keys
  • Speed dialling via keypad: 10 numbers
  • URL dialling
  • Local dial plan
  • Redial (via dialed calls list)
  • Automatic redial on busy
  • Caller identification (CLIP)
  • Calling Line Identification Restriction (CLIR)
  • Call completion (busy/unreachable)²
  • Intercom
  • Multicast paging
• Incoming call features
  • Call waiting/swapping
  • Call blocking (deny list)
  • Dynamic central blacklist check²
  • Blocking of anonymous calls
  • Auto answer
  • Call forwarding
  • Call deflection
  • Do Not Disturb (DND) mode
• Active calls
  • Mute microphone
  • Hold
  • Music on hold²
  • Blind call transfer
  • Attended call transfer
  • 4 + 1 local conferencing
  • Call park / unpark²
  • Client Matter Code (CMC)² 
• Related features
  • Call history lists of missed, received, dialed, rejected,
    and deflected calls
  • Extension monitoring, call pickup²

User interfaces and setup​​​

• Configuration and setup via menu-driven web user
  interface (WUI)
  • Visual and functional UX based re-design of web
    user interface (phone manager)
  • Password-protected login
  • Secure web server/client (HTTPS)
  • Languages
• Configuration and setup via menu-driven phone user
  interface (PUI)
  • ​​​​​Languages
• Automatic configuration via provisioning
  • Loading of settings and firmware via HTTP / HTTPS /
    TFTP
  • Supported DHCP provisioning options 
    43 / 60 / 66 / 67
  • Secure Redirection And Provisioning Service
    (SRAPS) support
  • Remote management via TR-069 / TR-069 Annex G /
    TR-369
  • Plug & Play (PnP) support
• Localization
  • Timezone
  • Additional language support
  • Dial tone
• Related features
  • Dual firmware partition

Keypad and function keys

• 39 hard keys in total
• Standard ITU telephone keypad: 12 keys with star and
  pound/hash key
• 5-way navigation key
• 12 function keys
  • 4 context-sensitive function keys
  • 8 freely programmable line / function keys
    (maximum 28 on 4 sides) with multicolor LEDs
• 5 dedicated audio keys
  • Mute key (1 x red LED), speakerphone key (1 x green
    LED), headset key (1 x green LED), volume control
    key
• 5 dedicated function keys
  • Cancel key, message key, transfer key, hold key,
    redial key
• Related features
  • Keyboard lock

Technologies and protocols​​​​​

• OpenVPN
• VLAN IEEE 802.1Q
• SIP - RFC 3261
• SDP - RFC 3261
• RTP - RFC 8866
• RTCP - RFC 3550
• RTCP-XR
• SIP REFER method (RFC 3515)
• rport - RFC 3581
• E.164 number to URI mapping (ENUM)
• ICE
• STUN | RFC 5389
• SIPS | SIP over TLS
• SRTP | RFC 3711
• SRTCP
• IPv4 / IPv6 (Dual-Stack)
• DHCP
• NTP
• LDAP
• LLDP-MED
• HTTP
• TFTP
• L2TP
• TLS 1.3
• HTTPS
• IEEE 802.1X - EAP-TLS - RFC 5216
• TR-069
• TR-069 Annex G (formerly TR-111)
• TR 369/User Services Platform (TR-369 | USP) 

Package contents

• 1 x desk phone unit
• 1 x footstand
• 1 x corded receiver
• 1 x 1,5 m (5 ft) Ethernet cable
• 1 x Quick Installation Guide

Accessories

• 00004544 | Wall mount kit (D8XX)
• 00004561 | Corded wideband receiver (D8XX)
• 00004570 | 10 W Power adapter
• 00004341 | A100M | Monaural Headset
• 00004342 | A100D | Binaural Headset
• 00004388 | A150 | DECT-Headset
• 00004387 | A170 | DECT-Headset
• 00002362 | EHS Advanced 2.0
• 00004384 | A210 | USB WLAN dongle
• 00004386 | A230 | USB DECT dongle 

Audio devices, codecs, and features

• Casing speaker
  • Hearing aid compatible (HAC)
  • Frequency range 150 Hz - 8 kHz
  • Noise cancellation
• Speakerphone mode
  • Frequency range 100 Hz - 8 kHz
  • Full duplex
  • 2 x dedicated microphones
• Audio-Codecs
  • G.711 (A-law, μ-law), G.722, G.723.1, G.726, G.729,
    Opus
• Dual-tone multi-frequency signalling (DTMF)
  • In-band, out-of-band, SIP-INFO
• Related features
  • Comfort noise generator (CNG)
  • Voice activity detection (VAD)
  • Audio response time
  • Adaptive jitter buffer
  • Packet loss concealment (PLC)

Interfaces and connections

• D862 power options
  • Power over Ethernet (PoE), IEEE 802.3af, class 3
  • Power adapter 100 - 240 V AC / 50 - 60 Hz | 5 V DC
    (SELV) /
    2 A / 10 W¹ 
• Wired interfaces
  • 1 x coaxial power adapter connector
  • 2 x 1 Gbit RJ45-8P8C Ethernet port
  • 1 x USB 2.0 Typ A
  • 1 x RJ9-4P4C standard receiver connector
  • 1 x RJ9-4P4C standard connector or USB port for
    wired headset connection
  • 1 x RJ12-6P6C proprietary EHS connector¹
  • Wireless interfaces
  • Bluetooth optional via USB Bluetooth dongle
  • WLAN optional via Snom USB WLAN Dongle¹
  • DECT optional via Snom USB DECT Dongle¹
• Sensors
  • Ambient light sensor
  • Hook switch sensor

Environmental conditions

• Operating ambient temperature: 0 ° C bis 35 ° C 
• Nonoperating temperature: - 10 ° C bis 45 ° C 
• Humidity (non-condensing): 5% - 95%

¹ Available separately
² If supported by PBX