Digium A25 IP Desk Telephone - SIP - VoIP

Digium A25 IP Phone for Asterisk Compatibility

The A25 is mid-level gigabit phone with 4 line registrations, 2 full-color LCD displays, a scroll key for accessing up to 30 contacts, and 2 switched 10/100/1000 Mbps Ethernet ports. This model is perfect for the average phone user who requires gigabit networking.

Digium A25 gives you future-proof speed using dual Gigabit Ethernet ports with pass-through. PoE support lets you install the A25 as part of an efficient, high-speed network deployment. Digium's deep networking expertise shines through even in a budget-friendly phone like the A25, with features like advanced QoS control, 802.1x authentication, and NAT traversal.

Digium A25 Telephony Business Options

The A25 and other A-Series IP Phones are designed 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 device models.

Keep your phone system project expenses to a minimum with the Digium A-Series IP phones for Asterisk, the ideal phones for low-cost Asterisk deployments. These budget-friendly IP phones provide the essential tools you need to complete your Asterisk installation. Their streamlined feature set includes standard applications, such as auto-answer, call waiting, and paging, to help your users communicate effectively and easily.

Telephony Features

• Auto-answer
• Headset-answer
• Headset-ring
• Distinctive ring
• Call waiting
• Call transfer (blind & attended)
• Call forward
• Call hold
• Intercom / Paging
• Message Waiting Indication (MWI)
• Busy Lamp Field (BLF)
• 3-way conferencing
• Do Not Disturb (DND)
• Redial
• Call timer
• Caller ID display

A25 Main Specification Set

• 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
• 4 context-sensitive soft keys
• 5-way navigation controller
• Headset, speaker and mute keys
• LED Message Waiting Indicator
• Volume control

Connectors and Device Accessory Ports Supported

• 4P4C (RJ-9) handset jack
• 4P4C (RJ-9) headset jack
• Electronic Hook Switch (EHS) port
• 2 switched 10/100/1000 Mbps Ethernet ports
• 5 volt DC power port

Parts supply replacement codes

• 1TELA025LF - Phone, A25, 4-Line SIP with HD Voice, Fast Ethernet, 2.8" Color Display, 2.4" BLF Display, Icon Keys
• 1TELD007LF - Power Adapter, North America, 5V, USB, IP Phone
• 1TELD008LF - Power Adapter, International, IP Phones