D-Series IP Phones

D40 IP Phones

This product is EOL and has been replaced with the D60 model.

An HDVoice, PoE phone with 2-line keys. Digium’s best value phone designed to work for any employee in your company.

Digium IP Phones include unprecedented HD Voice and plug-and-play deployment at a price that fits any budget. With multiple line appearances, context sensitive soft keys, and advanced applications, you can access the information you need instantly. Digium’s phones are the only phones that allow you to take full advantage of the flexibility and customization of Asterisk and Switchvox. 

The integrated applications that come standard on all Digium phones put critical information at your fingertips.

With voicemail, call log, contacts, phone status, user presence, parking and queue metrics, the Digium phones provide simple, intuitive access to a wealth of information, saving valuable time.

Digium phones support plug and play provisioning. Simply plug the phones in, automatically discover your Asterisk or Switchvox server, select the user, and start talking. Digium phones make it easier to do full office installs too.

IP Phone Specifications

General Features

  • 2x SIP Accounts
  • Call hold, mute, DND
  • Call forward, call waiting, call transfer
  • Busy Lamp Field (BLF)
  • Call park / pickup
  • Music on hold
  • Voicemail
  • Anonymous call / rejection ​
  • Message waiting indicator​
  • Intercom paging


  • Presence/Status
  • Visual Voicemail
  • Contacts
  • Call Logs
  • Parked Calls
  • Call Queues Info
  • Call Forwarding

Display & Indicator

  • 3.5 inch (480 x 320 pixel) full color display
  • LED for call and message waiting indication
  • Illuminated LEDs for line status information
  • Caller ID with name, number and photo
  • Wall paper

Physical Dimensions

  • Shipping dimensions 246mm (W) x 224mm (D) x 102mm (H)
  • Shipping weight 1.27kgs (2.8lbs)
  • Wall mountable
  • Stand with 3 adjustable angles


  • Dual-port Gigabit Ethernet
  • 1x RJ9 (4P4C) handset port
  • Power over Ethernet (IEEE 802.3af) (PoE), class 2
  • Electronic Hook Switch (EHS) support for wireless headsets

Optional Accessories

  • External universal AC adapter (US, UK, EUR)
  • AC 100~240V input
  • DC 5V/1.2A output
  • EHS headset adapter
  • EXP100 expansion module
  • Wall mount bracket
  • H10 Cordless DECT Headset


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  • 1TELD041LF - Phone, D40 2-Line SIP with HD Voice, Backlit Display, Icon Keys
  • 1TELD001LF - Wall Mount Kit, D40 IP Phone
  • 1TELD007LF - Power Adapter, North America, 5V, USB, IP Phone
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