Audio Features
• VAD, CNG, AEC, PLC, AJB, AGC
Phone Features
• Call hold, mute, DND
• One-touch speed dial, hotline
• Call forward, call waiting, call transfer
• Group listening
• Emergency call
• Redial, call return, auto answer
• 10-way conferencing
• 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)
> Yealink Bluetooth headset through BT51
> Support Yealink Bluetooth headset BH71/BH71 Workstation/BH71 Workstation Pro/BH72/BH76/UH38 through BT51
> DECT wireless headset (Yealink WH62 Portable/WH63 Portable)
> Wi-Fi through WF50(V1)
> USB call recording through USB flash drive
> USB headset
> Expansion Module EXP55
> Wireless Headset Adapter EHS40
> USB/Bluetooth connectivity to Yealink CP900/CP700 speakerphone/wireless headset UH38, USB connectivity to Yealink wired headset UH34/UH36/UH37:
- Basic functions: Answer/end, call mute
- Enhanced functions: audio optimization, redial, call hold, volume synchronization, multiple call control
• Accessibility features
Directory
• Blocklist
• XML/LDAP remote phonebook
• Smart dialing
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded
IP-PBX Features
• Anonymous call, anonymous call rejection
• Hot-desking, voice mail
• Flexible seating, Executive and Assistant
• Call park, call pickup
• Centralized call recording, call recording
• Visual voicemail
Display and Indicator
• LED for call and message waiting indication
• Wallpaper
• Intuitive user interface with icons and soft keys
• Multilingual user interface
• Caller ID with name, number and photo
• Screensaver
• Intelligent power saving
• Supports both dark and light themes
Feature keys
• 7 feature keys: hold, transfer, message, headset, mute, redial, speakerphone
• Volume control keys
• Illuminated mute/headset/hands-free speakerphone key
Interface
• Supports PoE power supply (IEEE 802.3af), class 3
• 2 x USB ports (Type-USB A, Type-USB C)
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port
Management
• Auto-provision via FTP/TFTP/HTTP/HTTPS for mass deployment
• Auto-provision with PnP
• Broadsoft device management
• Zero-Sp-Touch, TR-069
• Phone lock for personal privacy protection
• Reset to factory, reboot
• Package tracing export, system log
Network and Security
• Call server redundancy supported
• NAT traversal: STUN mode
• Proxy mode and peer-to-peer SIP link mode
• IP assignment: static/DHCP
• HTTP/HTTPS web server
• Time and date synchronization using SNTP
• UDP/TCP/DNS-SRV(RFC 3263)
• ARP, ICMP
• QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
• SRTP for voice
• Transport Layer Security (TLS 1.3)
• HTTPS certificate manager
• AES encryption for configuration file (AES256)
• Digest authentication using MD5/MD5-sess
• OpenVPN, IEEE802.1X, L2TP VPN
• IPv6, LLDP/CDP/DHCP VLAN, ICE
• WPA2/WPA3
• Secure boot
• GARP (Generic Attribute Registration Protocol)
• TEE hardware encryption solution
Other Physical Features
• Wall mountable (optional)
• External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A output
• USB output current: 5V/500mA
• Power consumption (PSU): 2.48 W-2.63 W
• Power consumption (PoE): 2.418 W-3.233 W
• Dimension (W*D*H*T): 262.1 mm*167.5 mm*219.2 mm*56.9 mm
• Operating humidity: 10 - 95%
• Operating temperature: -10 to 45°C (+14 to 113°F)
• Storage temperature: -30 to +70°C (-22 to +158°F)
Package Features
- Yealink SIP-T77U IP phone
- Handset with handset cord
- Ethernet Cable (2m CAT5E UTP Cable)
- Stand
- Quick Start Guide
- Power Adapter (Optional)
- Wall Mount Bracket (Optional)
• Qty/CTN: 5 PCS
• N.W/CTN: 6.99 kg
• G.W/CTN: 7.702 kg
• Giftbox size: 285 mm*253 mm*104 mm
• Carton Meas: 540 mm*260 mm*300 mm