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.726-32K, G.729AB, AMR, iLBC
Wideband CODEC: G.722, AMR-WB, Opus
Full-duplex Acoustic Echo Canceller (AEC)
Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR)
Packet Loss Concealment (PLC)
Dynamic Adaptive Jitter Buffer up to 300ms
DTMF: In-band, Out-of-Band – DTMF-Relay(RFC2833) / SIP INFO
Networking
Physical: 10/100/1000 Mbps Ethernet, dual bridged port for PC bypass
IP Mode:IPv4/IPv6/IPv4&IPv6
IP Configuration: Static / DHCP / PPPoE
Network Access Control: 802.1x
VPN: L2TP / OpenVPN
VLAN
LLDP
QoS
RTCP-XR(RFC3611),VQ-RTCPXR(RFC6035)
Protocols
SIP2.0 over UDP/TCP/TLS
RTP/RTCP/SRTP
STUN
DHCP
IPv6
LLDP
PPPoE
802.1x
L2TP
OpenVPN
SNTP
FTP/TFTP
HTTP/HTTPS
TR-069
Deployment & Maintenance
Auto-Provisioning via FTP/TFTP/HTTP/HTTPS/DHCP OPT66/SIP PNP/TR-069
SIP PNP/TR-069
Web Management Portal
Web-based Packet Dump
Configuration Export / Import
Phonebook Import/Export
Firmware Upgrade
Syslog