Digium A-Series Review: Affordable, High Quality IP Phones

May 3, 2018 by Ying-Hui Chen

Digium’s A-Series is a line of Asterisk-based deskphone systems designed with high-quality components. The A-Series includes 4 IP Phones: the A20, the A22, the A25, and the A30. Each model includes a full-color display, HD Voice, and multi-line functionality. Let’s take a closer look at them with Marc in the video below:

Entry Level A-Series VoIP Phones: The A20 vs The A22

Digium A20 IP Phone is an entry-level value phone with a 2.8-inch full-color display, 2 line registrations, Power over Ethernet (PoE), and 10/100BASE-T network ports. If the phone is going to be standalone, the A20 is all you need for any kinds of voice communication.

  • 2.8 inch backlit color LCD display
  • 2 line appearance keys
  • 1 feature key
  • 4 context-sensitive soft keys
  • 5-way navigation controller

The Digium A22 is another great choice for entry-level professionals. Very similar to the A20, the A22 supports  2 line registrations, 1 feature key, a 2.8-inch full-color display, and PoE. The main difference between the two entry-level phones is that the A22 supports a Gigabit port while the A20 only supports a 10/100 port. If you are connecting your PC to your phone, you will want to consider the A22 Gigabit IP phone!

  • 2.8 inch backlit color LCD display
  • 2 line appearance keys
  • 1 feature key
  • 4 context-sensitive soft keys


Mid-Level Professional VoIP Phone: The A25

If you are looking for a mid-level VoIP phone with more support, the A25 Gigabit phone can fit in just right! The A25 also gives you a Gigabit port like the A22 but it comes with a couple more advanced features. The A25 comes with 4 line registrations, two full-color displays, 6 Rapid Dial/Busy Lamp Field (BLF) keys with up to 30 contacts, PoE, and 10/100/1000BASE-T network ports.

  • 2.8 inch backlit color main LCD display
  • 2.4 inch backlit color BLF screen LCD display
  • 4 line appearance keys
  • 6 Rapid Dial keys, up to 30 BLF entries
  • 5 feature key

Executive-Level, Gigabit VoIP Phone: the A30

Now let’s move on to the top level VoIP phone of the A-Series – the A30. Designed for executive-level users, the A30 offers a 4.3-inch full-color display which is a little larger than other predecessors, 6 line registrations, 10 Rapid Dial/Busy Lamp Field (BLF) keys with up to 45 contacts, Power over Ethernet (PoE), and also 10/100/1000BASE-T network ports.

  • 4.3 inch backlit color LCD display
  • 6 line appearance keys
  • 10 Rapid Dial keys, up to 45 BLF entries
  • 7 feature key
  • 4 context-sensitive soft keys

Check out a summary chart of the Digium A-Series phones:

See Digium A-Series Datasheet

See Digium A-Series User Guide

So there you have it! The Digium A-Series phones are attractive, professional looking VoIP phones built specifically for Asterisk. You won’t want to miss them! Check out the product page to learn more or call our VoIP experts at 1-800-398-8647 today!

Do you have one of these A-series phones? What do you think about Digium’s new A-Series phones? Share with us!

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