Call Features

Answer / Reject Calls

Mute / Unmute (microphone)

Call Hold / Resume

Call Waiting

Intercom

Caller ID Display

Speed Dial

Anonymous Call (Hide Caller ID)

Call Forwarding (Always/Busy/No Answer)

Blind / Attended Call Transfer

Call Parking / Pick-up

Redial/Auto-Redial

Do-Not-Disturb (per line / per phone)

Auto-Answering (per line)

3-way Conference

Hot Line

Phone Features

2 SIP Lines

HD Voice

Handset / Hands-free / Headset mode

Phonebook (500 entries)

Remote Phonebook (XML/LDAP)

Call log (600 entries, in/out/missed)

Black/White List Call Filtering

Message Waiting Indication (MWI)

Programmable Soft keys

Network Time Synchronization

Action URL / Active URI

Industrial Standard Certifications: CE/FCC

Audio

HD Voice Microphone/Speaker

Wideband ADC/DAC 16KHz Sampling

Codecs: G.711a/u, G.723.1, G.726-32K, G.729AB, G.722

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

Screen：128x48 dot-matrix with backlight

Networking

10/100Mbps Ethernet, dual bridged port for PC bypass

IP Configuration: Static / DHCP / PPPoE

Network Access Control: 802.1x

VPN: L2TP (Basic Unencrypted) / OpenVPN

VLAN

QoS

Protocols

SIP2.0 over UDP/TCP/TLS

RTP/RTCP/SRTP

STUN

DHCP

PPPoE

802.1x

SNTP

FTP/TFTP

HTTP/HTTPS

TR069

RFCs

354/1321/1350/1769/1889/1890/2131/2132/2616/

2617/2661/2833/2976/3261/3262/3263/3264/3265

/3268/3311/3489/3711/4346/4566/5630/5865

Deployment & Maintenance

Auto-Provisioning via

FTP/TFTP/HTTP/HTTPS/DHCPOPT66/SIP PNP/TR069

Web Management Portal

Web-based Packet-dump

Configuration Export / Import

Phonebook Import/Export

Firmware Upgrade

Syslog