Power
Built-in IEEE 802.3af Power over Ethernet, with an optional external universal AC power supply (100-240V, 0.4A, 48V/19W).
Display
248 x 68 pixels, white LED backlight with adjustable intensity.
Keypad
Standard 12-key with 3 context-dependent soft keys, including on-hook/off-hook, redial, mute, and volume controls.
Audio Features
Loudspeaker frequency range: 220-14,000 Hz, adjustable up to 86 dB at 0.5 meters. Features include voice activity detection, comfort noise fill, low-delay audio, adaptive jitter buffers, packet loss concealment, acoustic echo cancellation, and background noise suppression. Supported codecs: G.711, G.729a, G.722, G.722.1, G.722.1C, Siren 14.
Call Handling
Supports shared call/bridged line appearance, Busy Lamp Field (BLF), call waiting, transfer, hold, divert, pickup, call timer, local three-way conferencing, one-touch speed dial, remote missed call notification, automatic off-hook, and do not disturb.
Other Features
Feature-rich local GUI, time and date display, configurable contact directory and call history, customizable call tones, and WAV file support.
Network & Provisioning
Ethernet 10/100 Base-T, 2.5mm connection port, two RJ-9 ports for expansion microphones, DHCP/static IP support, SNTP time sync, centralized provisioning via FTP/TFTP/HTTP/HTTPS, QoS with IEEE 802.1p/Q tagging, NAT support, RTCP, event logging, local digit map, diagnostics, status reporting, selectable ringer tones, and field upgradeable.
Security
Supports TLS, encrypted configuration files, digest authentication, password login, secure HTTPS provisioning, and signed software executables.
Protocol Support
IETF SIP (RFC 3261 and related RFCs).
Included with PoE Version
Telephone console, 25-foot Ethernet cable, Quick Start Guide, Quick User Guide.
Included with AC Power Version
Telephone console, 25-foot Ethernet cable, universal power supply, 7-foot region-specific power cord, power insertion cable, Quick Start Guide, Quick User Guide.
Environmental Conditions
Operating temperature: 32–104°F (0–40°C), relative humidity 20%–85% non-condensing, storage temperature: -22–131°F (-30–55°C).
