Audio Features
HD voice: HD handset, HD speaker
Wideband codec: AMR-WB (optional), Opus, G.722
Narrowband codec: G.711(A/µ), G.729AB, G.726, iLBC
DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
Full-duplex hands-free speakerphone with AEC
VAD, CNG, AEC, PLC, AJB, AGC
Phone Features
3 VoIP accounts
One-touch speed dial, redial
Call forward, call waiting
Call transfer, call hold
Call return, group listening, SMS
Mute, auto answer, DND
3-way conference call
Direct IP call without SIP proxy
Ring tone selection/import/delete
Hotline, emergency call
Set date time manually or automatically
Dial Plan
XML Browser
Action URL/URI
RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
Enhanced DSS Key
IP-PBX Features
Busy Lamp Field (BLF)
Bridged Line Appearance(BLA)
Anonymous call, anonymous call rejection
Hot-desking, voice mail
Message Waiting Indicator (MWI)
Call park, call pickup
Intercom, paging, music on hold
Call recording
Flexible seating
Executive and Assistant
Centralized call recording
Visual Voice Mail