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Yealink SIP-T77U
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Audio Features
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• HD voice: HD handset, HD speaker • Hearing aid compatible (HAC) handset • Acoustic Shield • Smart Noise Filtering • Audio codec: AMR-WB (optional), G.722 • Narrowband codec: AMR-NB (optional), PCMU (G.711μ), PCMA (G.711A), G.723.1, G.729, G.729A, G.729B, 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 |
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Phone Features
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• 16 VoIP accounts • 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 function: audio optimization, redial, call hold, volume synchronization, multiple call control • Accessibility features |
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Directory
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• Local phonebook up to 1000 entries • Blocklist • XML/LDAP remote phonebook • Smart dialing • Phonebook search/import/export • Call history: dialed/received/missed/forwarded |
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IP-PBX Features
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• Busy Lamp Field (BLF), Bridged Line Appearance (BLA) • Anonymous call, anonymous call rejection • Hot-desking, voice mail • Flexible seating, Executive and Assistant • Call park, call pickup • Centralized call recording, call recording • Visual voice mail |
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Display and Indicator
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• 7" 800 x 480 capacitive adjustable touch screen • 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 |
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Feature keys
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• 84 one-touch DSS keys • 7 feature keys: hold, transfer, message, headset, mute, redial, speakerphone • Volume control keys • Illuminated mute/headset/hands-free speakerphone key |
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Interface
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• Dual-port Gigabit Ethernet • Support PoE power supply (IEEE 802.3af), class 3 • 2 x USB port (Type-USB A, Type-USB C) • 1 x RJ9 (4P4C) handset port • 1 x RJ9 (4P4C) headset port |
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Management
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• Configuration: browser/phone/auto-provision • 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 |
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Network and Security
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• SIP v1 (RFC2543), v2 (RFC3261) • 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) • 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 |
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Other Physical Features
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• Color: Classic Grey • 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) |
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Package Features
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• Package content: - 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 |