Digium A20 provides the perfect entry-level IP phone for Asterisk. With support for 2 lines and seamless integration with the powerful Asterisk VoIP platform, A20 gives you a professional VoIP desk phone at an incredible price-point. Digium HD Voice technology gives you rich, natural audio from the hearing aid compatible handset and full-duplex speakerphone with echo cancellation. Connect a headset using the dedicated RJ9 port or the EHS port for electronic hook switch compatible headsets.

Digium A20 features dual Fast Ethernet ports with pass-through and PoE support for an efficient, high-speed network deployment. Digium's deep networking expertise shines through even in a budget-friendly phone like the A20, with features like advanced QoS control, 802.1x authentication, and NAT traversal.

Note: Digium A Series phones are intended for use with Asterisk. They are not supported for use with Switchvox. For Digium IP phones for use with Switchvox, see the Digium D Series.