| Audio Features | - HD voice: HD handset, HD speaker
- Hearing aid compatible (HAC) handset, magnet handset
- Yealink Noise Proof Technology
- Audio codec: SILK, Opus, G.722, G.722.1, G.722.1C, G.711 (A/µ), G.723, G.726, G.729AB, iLBC
- Full-duplex hands-free speakerphone with AEC
- VAD, CNG, AEC, PLC, AJB, AGC
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| Directory | - Contacts and presence synchronize with client
- Show contacts with presence and profile pictures
- Support local contacts
- Support global search, compatible with exchange
- Intelligent search
- Call history: placed/received/missed/forwarded
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| Signing into Skype for Business | - Signing in with user credentials/PIN authentication
- Web Sign-in
- Signing in via web user interface
- Signing in via BToE
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| BToE features | - Click to call/Click to answer
- Audio device switch from IP Phone to PC
- Wireless pairing with PC client
- As a PC Audio device
- Phone lock with PC
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| Display and Indicator | - 7" 800 x 480 capacitive touch screen
- Multilingual user interface
- Modern SfB interface, Full keyboard
- LED for call and message waiting indication
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| Interface | - Dual-port Gigabit Ethernet
- Power over Ethernet (IEEE 802.3af), class 3
- Built-in dual band 2.4G/5G Wi-Fi
- Built-in Bluetooth
- 1 x USB Type A port
- 1 x Security lock port
- 1 x RJ9 (4P4C) handset port
- 1 x RJ9 (4P4C) headset port
- Supports up to 3 color-screen expansion modules
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| Management | - Configuration: browser/phone/Auto provisioning
- Yealink Redirection and Provisioning Service (RPS)
- Auto Provisioning via Activation Code
- In-band provisioning
- In-Band Configuration Management
- Provisioning priority management
- Systematic diagnosis
- QoE (Monitoring Reports)
- Media Bypass, Firewall Traversal
- Reset to factory, reboot
- Package tracing export, system log
- Screenshot via URL
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| Network and Security | - SIP v1 (RFC2543), v2 (RFC3261)
- IPv4/IPv6
- Proxy mode and peer-to-peer SIP link mode
- IP Assignment: Static/DHCP/PPPoE
- HTTP/HTTPS web server
- Time and date synchronization using SNTP
- UDP/TCP/DNS-SRV (RFC 3263)
- QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS, D
- SRTP for voice, Transport Layer Security (TLS)
- EWS authentication
- Auto root certificate fetch
- HTTPS certificate manager
- Digest authentication using MD5/MD5-sess
- IEEE802.1X
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| Other Physical Features | - Color: Classic Grey
- USB output currency: 5V 500mA
- Power consumption (PSU): 1.5W-4.5W
- Power consumption (PoE): 2.3W-6.0W
- Dimension (W*D*H*T): 250.4 mm*168.7 mm*174.4 mm*44.5 mm
- Operating humidity: 10˜95%
- Operating temperature: -10˜50°C (+14˜122°F)
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