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Snom 320 Desk Phone

  • Sale
  • 226 CAD

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About the Snom 320 Office Desk Phone

Ideal for the office and everyone who makes a lot of calls, the is an affordable, yet powerful SIP business telephone with built-in full duplex speakerphone and three-party conference bridging.

A 2x24 semi-graphical LCD display and a menu-driven user interface supports easy feature management. 12 programmable keys with LEDs support flexible identity access/key configuration. A 100 number call memory, a 100 entry onboard address book (to which data may easily be uploaded), custom call blocking, configurable/downloadable ringtones, auto-answer mode, DND and other sophisticated features ensure convenience and productivity. And the 's built-in web server supports even simpler end user configuration, screen dialing, and access to call history.

The is remote-manageable and firmware-upgradable, uniquely easy to install, and largely self-configuring. Broad codec support and full compatibility with current SIP recommendations ensure interoperability; support for STUN (NAT traversal), ENUM (for dialed-number resolution) and other state-of-the-art features enables flexible deployment behind local proxies, IP PBXs or hosted VoIP services.

The supports the security standard SRTP – a current specification from the Internet Engineering Task Force (IETF) for protection against eavesdropping – and TLS for protection against sniffing of signaling and authentication data. By limiting the need for external conference bridges/media server capacity or use of conference services for routine multiparty calls, the 's built-in three-party conference bridge helps limit total cost of ownership, while also ensuring high audio quality and low latency.


  • Tiltable backlit two-line display
  • 12 identies (lines)
  • 47 keys, 13 LEDs
  • 12 programmable function keys
  • Speakerphone
  • Power over Ethernet
  • Ethernet switch
  • XML mini browser
  • Expansion module available



Specification Sheet


More Specifications


General Features

  • Dimensions: approx. 250 x 200 x120 mm
  • Weight: approx. 920 g
  • Certification FCC Class B, CE Marking
  • Safety: IEC 60950-1:2001
  • 1x LAN, 1x PC: RJ45 (Ethernet)
  • Power over Ethernet: IEEE 802.3af, Class 1
  • Power: PoE or 5V DC power supply listed in the user guide (1)
  • Ethernet: 2x IEEE 802.3 10/100 Mbps switch
  • Handset: 4P4C connector
  • Headset: (wired) 4P4C connector; wireless via snom EHS Advanced (2)
  • Expansion Module(3): Proprietary snom connector

User Interface

  • Tiltable backlit semi-graphical display, 2x24 character lines
  • 47 keys, 12 programmable function keys with LEDs (42 additional programmable function keys on the Expansion Module (3))
  • Menu-driven user interface
  • Localization
  • Selection of ring tones, VIP ring tones, integration of customized ring tones
  • Call indication with LED
  • LED indication for missed calls, waiting messages, and calls on hold
  • Speakerphone
  • Multiple audio device suppor
  • Clock with automatic daylight-saving time
  • Call timer

Call Features

  • 12 identities (lines)
  • Directory with 100 contact entries
  • Import/Export of Directory
  • Speed dialing
  • URL dialing
  • Local dial plan
  • Automatic Redial on busy
  • Call completion (Busy/Unreachable) (4)
  • Caller identification (caller ID)
  • Call waiting
  • Auto answer
  • Call blocking (deny list)
  • Blocking of anonymous calls
  • Lists of missed, received, and dialed calls
  • Hold
  • Music on hold (4)
  • Handling of up to 12 calls simultaneously
  • Blind and attended transfer
  • Call forwarding
  • 3-way conference on the phone
  • Extension monitoring, call pickup (4)
  • Call park, call unpark (4)
  • Call completion (4)
  • Multicast paging
  • DND mode (do not disturb)
  • Mute microphone
  • Keyboard lock
  • Client Matter Code (CMC) (4)

Web Server

  • Embedded web server HTTP/HTTPS
  • Remote configuration/provisioning
  • Dial from web interface
  • Password protection
  • Diagnostics (tracing, logging, syslog Security, Quality of Service
  • HTTPS (server/client)
  • Transport Layer Security (TLS)
  • SRTP (RFC3711), SIPS
  • VLAN (IEEE 802.1X)

Codecs, Audio

  • G.711 A-law, μ-law
  • G.722, G.729A, G.723.1, G.726
  • GSM 6.10 (full rate)
  • Comfort noise, voice activity detection SIP
  • RFC3261 compliance
  • UDP, TCP and TLS
  • Digest/basic authentication
  • PRACK (RFC3262)
  • Reliability of provisional responses (RFC3262)
  • Early media support
  • DNS SRV (RFC3263), redundant server support
  • Offer/answer (RFC3264)
  • Message Waiting Indication (RFC3842), subscription for MWI events (RFC3265)
  • Dialog-state monitoring (RFC 4235)
  • In-band DTMF/out-of-band DTMF/ SIP INFO DTMF
  • STUN client, ICE (NAT traversal)
  • ENUM (RFC3261), NAPTR (RFC2915), rport (RFC3581), REFER (RFC3515)
  • Bridged line appearance (BLA) (4)
  • Auto provisioning with PnP (4)
  • Busy lamp field support (BLF) (4)


  • Automatic software update
  • Automatic settings retrieval via HTTP/HTTPS/TFTP with authentication
  • Installation via web interface
  • Remote management via TR-069/TR-111
  • Static IP provisioning, DHCP
  • NTP

Phone System Support Overview


Supported Phone Systems


Resources and Documents