•Features
Display: 128x64 pixel LCD display with white LED backlight
Audio: HD voice microphone/speaker (handset/hands-free, 0 ~ 7KHz frequency response), HAC handset, Wideband ADC/DAC 16KHz sampling, Narrowband codec: G.711a/u, G.723.1, G.726, G.729A/B, iLBC, Wideband codec: G.722, Opus, Full-duplex Acoustic Echo Canceller (AEC), Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR) / Automatic Gain Control (AGC), Packet Loss Concealment (PLC), Dynamic adaptive jitter buffer, DTMF: In-band, Out-of-Band (RFC2833/ SIP INFO), VQM voice quality monitoring
Network: Physical: 10/100Mbps ethernet, IP Mode:IPv4/IPv6/IPv4&IPv6, IP Configuration: Static IP / DHCP / PPPoE, Network Access Control: 802.1x, VPN: L2TP / OpenVPN, VLAN, LLDP, CDP, QoS, RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
Protocols: SIP2.0 over UDP/TCP/TLS, RTP/RTCP/SRTP, STUN, DHCP, IPv6, LLDP, CDP, PPPoE, 802.1x
Physical Specifications: Keypad: 19 keys, including 12 Standard Phone Digits keys(0-9: Speed dial configuration on webpage), 3 Function keys (Hands-free , Redial ,Hold), 3 Volume Control keys, Up/Down/Mute(with red color LED), 1 DSS key, HD handset (RJ11) x1, RJ11 handset cord x1, Status indicator light x1 (two-color LED), RJ11 port x1: handset x1, RJ45 port x1: network x1, DC port x1: Φ5.5x2.1x10mm, DC power input: DC5V / 2A or PoE, PoE level: Class 1, Working temperature: 0~45℃, Working humidity: 10~95%, Installation: Desktop / Wall-mounted, Color: black/white, Device dimensions: 55.8x215x57.8 mm, Gift box dimensions: 224x75x62 mm, Outer CTN dimensions: 335x323x243 mm (20 PCS)