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Digium A Series of IP Phones for Asterisk

The following chart displays all current models of Yealink T2 IP phones by their distinguishing features. Shared features are listed after the chart.


Model Main Display Ethernet Ports Lines Speed Dial Keys Feature Keys
Digium A20 Digium D20 2.8" backlit color LCD 2x 10/100 2 0 1
Digium A22 Digium D22 2.8" backlit color LCD 2x 10/100/1000 Gigabit 2 0 1
Digium A25 Digium D25 2.8" backlit color LCD 2x 10/100/1000 Gigabit 4 6 (with secondary display) 5
Digium A30 Digium D30 4.3" backlit color LCD 2x 10/100/1000 Gigabit 6 10 7

All Digium A Series phones include the following features, and more:

  • Designed for Asterisk
  • SIP v2 communications protocol support
  • Power over Ethernet (PoE) compliance
  • RJ9 handset and headset jacks
  • Hearing aid compatible (HAC) handset
  • Full-duplex speakerphone with echo cancellation
  • Digium HD Voice: wideband and narrowband audio
  • 3-way local conferencing
  • Quality of Service (QoS) control

Digium does not currently produce expansion modules.

Digium D Series of IP Phones for Switchvox

The following chart displays all current models of Digium D Series IP phones by their distinguishing features. Shared features are listed after the chart.


Model Main Display Ethernet Ports Bluetooth Lines Speed Dial Keys Feature Keys
Digium D62 Digium D60 4.3" 480x272 backlit color LCD 2x 10/100 no 2 1 4
Digium D62 Digium D62 4.3" 480x272 backlit color LCD 2x 10/100/1000 Gigabit no 2 1 4
Digium D65 Digium D65 4.3" 480x272 backlit color LCD 2x 10/100/1000 Gigabit yes 6 5 4
Digium D80 Digium D80 7" 800x1280 backlit color LCD capacitive touchscreen 2x 10/100/1000 Gigabit yes 1 up to 20 on-screen touchscreen

All Digium D Series phones include the following features, and more:

  • Designed for Switchvox
  • SIP v2 communications protocol support
  • Power over Ethernet (PoE) compliance
  • RJ9 handset and headset jacks
  • Hearing aid compatible (HAC) handset
  • Full-duplex speakerphone with echo cancellation
  • Digium HD Voice: wideband and narrowband audio
  • 3-way local conferencing
  • Quality of Service (QoS) control

Digium does not currently produce expansion modules.