Điện thoại IP Wifi Yealink SIP-T57W

Điện thoại IP Wifi Yealink SIP-T57W được tích hợp kết nối Wifi, hỗ trợ đàm thoại trên mạng Wifi băng tần kép 2.4GHz/5GHz. Điện thoại để bàn Wifi Yealink SIP-T57W tích hợp màn hình màu LCD kích thước lớn 7 inch có thể điều chỉnh được góc nhìn, âm thanh đàm thoại HD và 2 cổng Gigabit/PoE cho kết nối có dây khi cần thiết.

Điện thoại IP Wifi Yealink SIP-T57W cung cấp các tính năng sau:

• Màn hình LCD màu 7 inch, độ phân giải 800 x 480 pixel, màn hình có thể điều chỉnh được
• 16 tài khoản SIP
• Giao tiếp mạng Wifi băng tần kép 2.4GHz/5Ghz
• 2 cổng mạng Gigabit 10/100/1000Mbps
• Hỗ trợ PoE
• Hỗ trợ kết nối Bluetooth, Wi-Fi.
• Cổng USB 2.0 hỗ trợ tính năng ghi âm USB và tai nghe không dây.
• Nguồn điện: 100~240VAC

Thông số kỹ thuật điện thoại để bàn Wifi Yealink SIP-T57W

Yealink SIP-T57W Technical Specifications

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

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 dual-band Wi-Fi:
  • Bluetooth headset
  • Mobile contacts synchronisation
  • Bluetooth call
• USB port (2.0 compliant) for:
  • Wired/wireless USB headset
  • USB call recording through USB flash drive
  • Colour-screen expansion modules EXP50 (up to 3)
• Content Sharing (via Yealink VCD)
• Enhanced DSS key

Directory

• Local phonebook up to 1000 entries
• Blacklist
• XML/LDAP remote phonebook
• Smart dialling
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded

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
• Centralised call recording, call recording

Display and indicator

• 7″ 800 x 480 capacitive adjustable touch screen
• LED for call and message waiting indication
• Dual-colour (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

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

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

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

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 synchronisation 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

Other Physical Features

• Colour: Classic Grey
• Wall mountable (optional)
• External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A output
• Power consumption (PSU):
• Power consumption (PoE):
• Dimension (W*D*H*T): 259.4mm*220mm*211mm*44.5mm
• Operating humidity: 10~95%
• Operating temperature: 0~40°C (+32~104°F)