Yealink SIP-T21P

Yealink SIP-T21P

Yealink’s new SIP-T21P E2 takes entry-level IP phones to a level never achieved before. Making full-use of high-quality materials, plus an extra-large 132×64-pixel graphical LCD with backlight showing a clear 5-line data display, it offers a smoother user 

experience, much more visual information at a glance, plus HD Voice characteristics. Dual 10/100 Mbps network ports with integrated PoE are ideal for extended network use. The T21P E2 supports two VoIP account, simple, flexible and secure installation options, plus support for IPv6, Open VPN and a redundancy server. It also operates with SRTP/ HTTPS/ TLS, 802.1x.As a very cost-effective and powerful IP solution, the T21P E2 maximizing productivity in both small and large office environments. 
 

Features

• Simple design
• 2 port 10/100m Ethernet Ports
• 132×64-pixel graphical LCD 
• 2 SIP account
• Paper label free design
• PoE support
• Headset support
• XML remote phonebook
• Wall mountable

Specification

Audio Features

• HD Voice: HD handset, HD speaker
• Wideband codec: G.722
• Codecs: G.711(A/μ), G.723, G.729AB, G.726
• 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 account
• Call hold, mute, DND
• One-touch speed dial, hotline
• Redial, call return, auto answer
• Call forward, call waiting, call transfer
• Group listening, SMS
• Local 3-way conferencing
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Emergency call
• Set date time manually or automatically
• Dial Plan, XML Browser, action URL&action URI
•  

Directory

• Local phonebook up to 1000 entries
• Black list
• XML remote phonebook
• Intelligent search method
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded

Voice Exchange, IP-PBX Features

• Busy Lamp Field (BLF)
• Bridged Line Appearance
• Anonymous call, anonymous call rejection
• Message Waiting Indicator (MWI)
• Voice mail, call park, call pickup
• Intercom, paging, music on hold
• Call completion, hot-desking

Display and Indicator

• 132×64-pixel graphical LCD 
• LED for call and message waiting indication
• Dual-color (red or green) illuminated LEDs for line status
• Intuitive user interface with icons and soft keys
• National language selection
• Caller ID with name, number

Feature Keys

• 2 line keys with LED
• 6 features keys: message, headset, redial, tran, mute, hands-free speakerphone
• 6 navigation keys
• Volume control keys

Interface

• Dual-port 10/100m Ethernet ports
• 1xRJ9 (4P4C) handset port
• 1xRJ9 (4P4C) headset port
• Power over Ethernet (IEEE 802.3af), Class 2

Management

• Configuration: browser/phone/auto-provision
• Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
• Auto-provision with PnP
• Zero-sp-touch
• Provisioning server redundancy supported
• Reset to factory, reboot
• Package tracing export, system log

Network and Security

• SIP v1 (RFC2543), v2 (RFC3261)
• NAT transverse: 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 (TLS)
• HTTPS certificate manager
• AES encryption for configuration file
• Digest authentication using MD5/MD5-sess
• IEEE802.1X
• IPv6

Other Physical Features

• Wall mountable
• External universal AC adapter (optional)
• Power consumption (PSU): 1.2-1.9W
• Power consumption (PoE): 1.8-2.3W
• Dimension(W*D*H*T): 209mm*188mm*150mm*41mm
• Operating humidity: 10~95%
• Operating temperature: -10~50°C