| Audio Features |
HD voice: HD handset, HD speaker
Hearing aid compatible (HAC) handset
Acoustic Shield
Audio codec: Opus, G.722, PCMA, PCMU, G.729A/B, G.726, G.723.1, 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 |
16 VoIP accounts
Call hold
One-touch speed dial
Hotline
Call forward, call waiting, call transfer
Mute, DND
Group listening, SMS
Emergency call
Redial, call return,
Auto answer
3-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)
Built-in dual band Wi-Fi:
- Network standard: IEEE802.11a/b/g/n/ac
- Transmission rate: Up to 433Mbps (dynamic)
- Frequency range: 2.4GHz/5.0GHz
Built-in Bluetooth for:
- Bluetooth headset,
- Mobile contacts synchronization
- Bluetooth call
USB port (2.0 compliant) for:
- Wired/wireless USB headset
- USB call recording through USB flash drive
- Color-screen expansion modules EXP50 (up to 3)
Content Sharing (via Yealink VCD)(1)
Enhanced DSS key
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| Directory |
Local phonebook up to 1000 entries
Black list
XML/LDAP remote phonebook
Smart dialing
Phonebook search/import/export
Call history: dialed/received/missed/forwarded
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| Corded-Cordless Phone (via DECT Dongle DD10K) |
Up to 4 DECT cordless handsets
Up to 4 concurrent calls
Support Yealink W52H/W53H/W56H/DD Phone
Slave Handset for Master Deskset |
| IP-PBX Features |
Busy Lamp Field (BLF), Bridged Line Apperance (BLA)
Anonymous call, anonymous call rejection
Hot-desking, voice mail
Flexible seating, Executive and Assistant
Call park, call pickup
Centralized call recording, call recording
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| Display and Indicator |
7" 800 x 480 capacitive adjustable touch screen
LED for call and message waiting indication
Dual-color (red or green) illuminated LEDs for line status information
Wallpaper
Intuitive user interface with icons and soft keys
Multilingual user interface
Caller ID with name, number and photo
Screensaver
Power saving
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| Feature keys |
29 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 |
Dual-port Gigabit Ethernet
Power over Ethernet (IEEE 802.3af)
1 x USB port (2.0 compliant)
1 x RJ9 (4P4C) handset port
1 x RJ9 (4P4C) headset port
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| Management |
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
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 |
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/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 DSCP
SRTP for voice
Transport Layer Security (TLS1.2)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication using MD5/MD5-sess
OpenVPN, IEEE802.1X
IPv6, LLDP/CDP/DHCP VLAN, ICE
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| Other Physical Features |
Color: Classic Grey
Wall mountable (optional)
External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A output
USB output currency: 5V 500mA
Power consumption (PSU): 3.2W-6.3W
Power consumption (PoE): 4.0W-7.8W
Dimension (W*D*H*T): 259.4mm*220mm*211mm*44.5mm
Operating humidity: 10~95%
Operating temperature: -10~50°C (+14~122°F)
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| Package content |
Yealink SIP-T57W IP phone
Handset with handset cord
Ethernet Cable
Stand
Quick Start Guide
Power Adapter (Optional)
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