Specifications

Product information

• IP desk phone D812|PN 00004690
  Colour: gunmetal black
  Anti-bacterial housing
• Operating system: Linux
• Placement
• indoor, desktop, wall mounting1

Dimensions

• Dimensions (L × W × H, approx.)
• 210 mm × 243 mm × 45 mm without footstand
  193 mm × 243 mm × 165 mm with footstand
  Weight (approx.)
• 1.12 kg with footstand

Display

• TFT liquid crystal display (LCD): IPS panel, true colour, backlit
  Size (diagonal): 5.0″ (127 mm)
• Size (W × H): 110 mm × 62 mm
• Resolution: 480 × 272 pixel
• 13 LED indicators
• Call status indication: 1 red LED
  Message waiting indication (MWI): 1 red LED
  Function key status indication: 8 multicolour LEDs
  Audio key status indication: 3 LEDs (1 red / 2 green)

Keypad and function keys

• 39 hard keys in total
• 12 keys (standard ITU telephone keypad)
• 5-way navigation key
• 4 context-sensitive function keys
• Programmable function keys
• 8 SmartLabel keys (with multicolour LED)
  Key mapping of up to 32 functions (8 keys × 4 pages)
• 5 dedicated audio keys
• Mute (with red LED)
  Speakerphone (with green LED)
  Headset (with green LED)
  Volume + / – (rocker)
  5 dedicated function keys
• Cancel
• Message (with red LED)
  Transfer
• Hold
  Redial
• Keyboard lock
  Expansion module connection via USB port for up to 3 × D8C1

Power options

• Power over Ethernet (PoE)
  IEEE 802.3af, class 3|IEEE 802.3az3
  Power adapter1
• 100 – 240 V AC, 50 – 60 Hz | 5 V DC (SELV), 2 A, 10 W1
• Wired interfaces
• Power adapter: coaxial power connector (socket)
  Network connectivity: 2 × RJ45-8P8C sockets (NET, PC) → Gigabit Ethernet (GbE)
  USB connectivity: USB 2.0 type A port
  Corded handset: RJ9-4P4C socket
  Headset: RJ9-4P4C socket
  EHS adapter:1 RJ12-6P6C socket
  Wireless interfaces
• Third party headset support
• DECT: optional via A2301
  Network connectivity: WLAN optional via A2101
  Sensors
• Hook switch sensor

Audio devices, codecs and features

• Casing microphone|Casing speaker
  Frequency range: 100 Hz – 8.0 kHz
  Speakerphone mode: Full duplex, HD audio , Acoustic echo cancellation (AEC)
  Corded handset:
• Microphone|Handset earpiece
  Frequency range: 150 Hz – 8.0 kHz
  Noise cancellation, HD audio , Hearing aid compatible (HAC)
  Audio codecs
• G.711 (A-law, μ-law), G.722, G.723.1, G.726, G.729AB, GSM6.10(FR), Opus
• Dual-tone multi-frequency signalling (DTMF / RFC2833):
• SIP-INFO, in-band, out-of-band
  Related features
• Comfort Noise Generator (CNG)
  Voice Activity Detection (VAD)
• Audio response time
  Adaptive jitter buffer
  Packet loss concealment (PLC)

User interfaces and setup

• Configuration and setup via menu-driven web user interface (WUI)
  Password-protected login
  Secure web server/client (HTTPS)
  Configuration and setup via menu-driven phone user interface (PUI)
  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-111) / TR-369
  Plug & Play (PnP) support
  Localization
• Languages
  Time zone, dial tone
  Diagnostic
• SIP / PCAP trace
• Syslog
• Related features
• Dual firmware partition

Network technologies

• OpenVPN, VLAN (IEEE 802.1q)
  VoIP related protocols and techniques
• SIP, SDP, RTP, RTCP, RTCP-XR, SIP REFER method (RFC 3515), rport (RFC 3581), ENUM, ICE, STUN
  Secure VoIP protocols
• SIPS (SIP over TLS), SRTP, SRTCP
  Network protocols
• IPv4 / IPv6 (dual stack), DHCP, NTP, LDAP, LLDP-MED, HTTP, TFTP, L2TP
  Secure network protocols
• TLS V1.2 HTTPS, IEEE 802.1X (EAPoL)
  Remote management protocols
• TR-069, TR-069 Annex G (formerly TR-111), TR-369 (USP)

Directory support and call features

• 12 SIP identities / accounts
• Up to 12 simultaneous calls
• Directory support
• LDAP (server-based directory)
  Local directory with up to 2,000 entries
  Outgoing call features
• Speed dialling via function keys
  Speed dialling
• 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
  Auto answer
  Call diversion
  Call barring/blocking: deny list, anonymous calls, Do Not Disturb (DND) mode
  Connected call features
• Mute microphone
  Hold
  Music on hold2
  Blind call transfer
  Attended call transfer
  2+1 (4+1) local conferencing3
• Call park / unpark2
  Client Matter Code (CMC)2
  Related features
• Call history lists of missed, received, dialed, rejected, and deflected calls
  Extension monitoring (Busy lamp field), call pickup2

Hardware

• IP desk phone D812
• Corded handset
• Footstand
• Ethernet cable: 1.5 m
  Documentation
• Quick Installation Guide
  GNU General Public License

Power adapter

• Snom 10W PSU (PN 00004570)
  Wall mount kit
• D8xx WM (PN 00004544)
• Corded wideband receiver
• D8xx WB handset (PN 00004561)
• USB dongle
• Wireless LAN: A210 (PN 00004384)
  DECT: A230 (PN 00004386)
  EHS adapter
  EHS Advanced 2.0 (PN 00002362)
  DECT headset via
• USB (DECT): A150 (PN 00004388)
  RJ9: A170 (PN 00004387)
  Wired headset via RJ9
• Binaural: A100D (PN 00004342), A310D (PN 00004626)
  Monaural: A100M (PN 00004341), A310M (PN 00004624)
  Wired headset via USB
• Binaural: A330D (PN 00004598)
  Monaural: A330M (PN 00004597)
  Expansion module
• D8C (PN 00004562)

• Available separately
• If supported by PBX
• Optional via software