Full specification
Display: 4.3-inch TFT color LCD (480×272)
SIP Accounts: 16
Audio: HD voice, Acoustic Shield, Smart Noise Filtering, HAC handset
Hearing Aid Compatible (HAC): Yes
Operating System: Linux 6.1
Security: TEE hardware encryption
Ethernet Ports: 2x Gigabit
USB: USB 2.0 port (USB headsets, USB recording)
PoE: Yes (IEEE 802.3af, Class 2)
Programmable Keys: 50 DSS keys (5 pages); expandable to 234 with up to 3× EXP55 modules
Speakerphone: Full-duplex with AEC
Wall Mountable: Yes (via optional bracket)
Headset Support: RJ9, USB, EHS, Bluetooth/Wi-Fi via adapters
Stand: 2-angle adjustable desk stand included
Phone Book: Up to 1000 entries
Codec Support: G.722, G.729, G.711, iLBC, AMR-NB, AMR-WB