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D120 Desk Telephone

Simple but effective entry-level VoIP solution

With the D120, Snom completes its phone series with a real entry-level device. Designed for large installations, such as those that can be found in the hotel- or healthcare industry, its straightforward design and exceptional audio quality meet all the requirements of an entry-level phone.The D120 is a no-frills phone without a large display, special function keys or features such as call holding for more than one call etc. and has been designed purely with stability and ease-of-use in mind.

Nevertheless, the Snom D120 does feature a backlit display which is a unique within the price segment. The D120 is hearing aid compatible (HAC), is equipped with its own specially adapted firmware, has very low power consumption requirements, can be used via PoE (Power over Ethernet) and is compatible with Snom’s redirection services. Combined with an unbeatable price, it is the leader in its class.

Quick summary

  • 2 SIP identities
  • Low power consumption (PoE)
  • Backlit graphical display
  • 360° degree call/message indicator
  • 4 context sensitive function keys + 5 function keys


  • Graphical Display 132 x 64 pixels with backlight
  • Single position footstand 35°
  • Wall mountable (1)
  • Hands-free talking (Speakerphone)
  • Digital Signal Processor (DSP) enhanced audio quality
  • 2-port 10/100 Mbps Ethernet switch (RJ45)
  • Power over Ethernet IEEE 802.3af, Class 1
  • SHA-2 based secure provisioning



  • 2 SIP identities / accounts
  • XML Browser
  • Call lists for dialed, received, missed calls
  • Directory with 250 entries
  • Languages: English, French, Spanish
  • Additional language support via provisioning
  • In-band DTMF / out-of-band DTMF / SIP INFO DTMF
  • Interoperable with all major IP-PBX platforms

Call features

  • Speed dialing
  • URL dialing
  • Local dial plan
  • Automatic Redial on busy
  • Call completion (busy/unreachable)(2)
  • Caller identification
  • Call waiting
  • Call blocking (deny list)
  • Blocking of anonymous calls (2)
  • Auto answer
  • Lists of missed, received and dialed calls
  • Hold
  • Music on hold (2)
  • Handling of up to 2 simultaneous calls
  • Blind and attended transfer
  • Call forwarding
  • 3-way conference on the phone
  • Call pickup
  • Call park, call unpark (2)
  • Multicast paging
  • DND mode (do not disturb)
  • Keyboard lock


  • Codecs
    • G.711 A-law, μ-law
    • G.722 (wideband)
    • G.726, G.729, GSM 6.10 (FR)
  • 10 built-in assignable ringtones
  • Comfort Noise Generator (CNG)
  • Voice Activity Detection (VAD)


  • Configurable through web interface
  • Provisioning
    • DHCP Options 66/67
    • Plug & Play (PnP)
    • Snom redirection Service
    • Remote management via TR-069



  • SIP (RF3261)
  • LDAP (Directory)
  • Dual Stack IPv4/IPv6

User Interface

  • Number of keys: 32
  • Line keys with LED: 2
  • Dedicated keys: DND, Directory, Transfer, Hold, Message
  • Context-sensitive function keys: 4
  • Navigation keys: 2 (up/down)
  • Audio keys: Mute, Speakerphone, Volume control
  • Redial via call lists (OK key)
  • High-visibility red LED for call indication / message waiting (2)
  • Menu-driven interface
  • Localization (Language, time, dial tone)


  • Transport Layer Security (TLS)
  • VLAN
  • IEEE 802.1X
  • Web interface password protection

Phone Features

  • Dimensions: 205 x 161 x 32 mm (W/o foot stand)
  • Dimensions: 205 x 161 x 120 mm (with foot stand)
  • Input voltage: 5V DC (SELV)
  • Handset: RJ-4P4C
  • Headset: RJ-4P4C
  • Hearing aid compatible (HAC) handset
  • Power: PoE or 5V DC power adapter (1)
  • Environmental Conditions: 
    • Ambient temperature: 0° to 35° C(32° to 95° F)
    • Non-operating temperature: -10°C to 45°C
    • Relative humidity: 5% to 95% noncondensing
  • Included in delivery
    • Base phone unit
    • Foot stand
    • Handset with cord
    • Ethernet cable
    • Quick Installation Guide
  • Color: Black
  • Warranty: 3 years
  • Part Number: 00004361 for all markets
  • APN: 80-S017-00
(1) Optional accessory
(2) If supported by PBX

APN numbers for optional accessories

26-350200-3UL    Power Adapter Snom A6 / US clip
89-S020-00    A100D Binaural headset
89-S019-00    A100M Mono headset