Điện Thoại IP Yealink SIP-T21 E2

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  • Yealink HD Voice
  • 132 x 64-pixel graphical LCD with backlight
  • Two-port 10/100M Ethernet Switch
  • PoE support (T21P E2)
  • Opus codec support
  • Up to 2 SIP accounts
  • Headset support
  • Wall mountable
  • Simple, flexible and secure provisioning options
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In stock

Mô tả

Audio Features

  • HD voice: HD handset, HD speaker
  • Wideband codec: AMR-WB (optional), Opus, G.722
  • Narrowband codec: G.711(A/µ), 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

Phone Features

  • 2 VoIP accounts
  • Call hold, mute, DND
  • One-touch speed dial, hotline
  • Call forward, call waiting, call transfer
  • Group listening, SMS, emergency call
  • Redial, call return, auto answer
  • Local 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
  • Integrated screenshots
  • RTCP-XR, VQ-RTCPXR
  • Enhanced DSS Key

Directory

  • Loal phonebook up to 1000 entries
  • Black list
  • XML/LDAP remote phonebook
  • Smart dialing
  • Phonebook search/import/export
  • Call history: dialed/received/missed/forwarded

IP-PBX Features

  • Busy Lamp Field (BLF)
  • Bridged Line Apperance (BLA)
  • Anonymous call, anonymous call rejection
  • Hot-desking, voice mail
  • Flexible seating
  • Call park, call pickup
  • Executive and Assistant
  • Centralized call recording
  • Visual voice mail
  • Call recording

Display and Indicator

  • 132 x 64-pixel graphical LCD with backlight
  • LED for call and message waiting indication
  • Dual-color (red or green) illuminated LEDs for line status information
  • Intuitive user interface with icons and soft keys
  • Multilingual user interface
  • Caller ID with name and number
  • Power saving

Feature keys

  • 2 line keys with LED
  • 6 features keys: message, headset, redial, transfer, mute, hands-free speakerphone
  • 6 navigation keys
  • Volume control keys Interface
  • 2 x RJ45 10/100M Ethernet ports
  • Power over Ethernet (IEEE 802.3af), class 2 (T21P E2)
  • 1 x RJ9 (4P4C) handset port
  • 1 x RJ9 (4P4C) headset port

Other Physical Features

  • Color: Black
  • Wall mountable
  • External Yealink AC adapter:AC 100~240V input and DC 5V/600mA output
  • Power consumption (PSU): 0.8-1.4W
  • Power consumption (PoE): 1.3-1.8W (T21P E2)
  • Dimension (W*D*H*T): 209 mm*188 mm*150 mm*41 mm
  • Operating humidity: 10~95%
  • Operating temperature: -10~50°C (+14~122°F)

Management

  • Configuration: browser/phone/auto-provision
  • Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
  • Auto-provision with PnP
  • 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
  • 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)
  • HTTPS certificate manager
  • AES encryption for configuration file
  • Digest authentication
  • OpenVPN, IEEE802.1X
  • IPv6
  • LLDP/CDP/DHCP VLAN
  • ICE

Package Features

  • Package content:
    – Yealink SIP-T21(P) E2 IP phone
    – Handset with handset cord
    – Ethernet Cable (1.5m CAT5E UTP Cable)
    – Stand
    – Quick Start Guide
    – Power Adapter: T21 E2 (Standard)/T21P E2 (Optional)
  • Qty/CTN: 10 PCS
  • N.W/CTN: 11.7 kg
  • G.W/CTN: 12.5 kg
  • Giftbox size: 215 mm*200 mm*118 mm
  • Carton Meas: 615 mm*436 mm*208 mm

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