Audio Features
> HD voice: HD handset, HD speaker
> Hearing aid compatible (HAC) handset
> Acoustic Shield
> Wideband codec: AMR-WB (optional), Opus, G.722
> Narrowband codec: AMR-NB (optional), Opus,
G.711(A/µ), G.723.1, 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
> 12 VoIP accounts
> One-touch speed dial, redial
> Call forward, call waiting, call transfer, call hold
> Call return, group listening, emergency call
> Mute, auto answer, DND, hoteline
> 5-way conference call
> Direct IP call without SIP proxy
> Ring tone selection/import/delete
> Set date time manually or automatically
> Dial Plan, XML Browser, Action URL/URI
> RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
> Dual USB ports (2.0 compliant)
– Bluetooth earphone through BT40/BT41
– Contact synchronization through BT40/BT41
– Wi-Fi through WF40/WF50
– USB call recording through USB flash drive
– USB headset
– Expansion Module EXP43
– Wireless Headset Adapter EHS40
> Enhanced DSS key
Interface
> Dual-port Gigabit Ethernet
> Power over Ethernet (IEEE 802.3af), Class 2
> 2 x USB port (2.0 compliant)
> 1 x RJ9 (4P4C) handset port
> 1 x RJ9 (4P4C) headset port
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