Yealink T21PN IP Phone with POE (No PSU)


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The Yealink T21PN features a 132 x 64 pixel graphical LCD showing a clear 5 line data display, allowing more visual information at a glance as well as full support forb HD voice. With the ability to support two VoIP accounts the Yealink T21PN is a flexible, effective and easy to operate IP phone ideal for both small and large office environments.

SKU: T21PN Categories: ,


Yealink T21PN Key Features
• HD Voice: HD Codec, HD speaker, HD handset
• 132 x 64-pixel graphical LCD
• 2 VoIP accounts
• Dual 10/100 Ethernet Ports, integrated PoE
• Full Duplex speakerphone
• Headset Port
• Wall mountable
• XML/LDAP remote phonebook

Yealink T21PN Audio Features:
Full-duplex hands-free speakerphone with AEC, Codecs: G.722(Wideband), G.711(A/μ), G.723, G.729AB, G.726, DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO, VAD, CNG, AEC, PLC, AJB, AGC

Yealink T21PN Phone Features:
2 VoIP accounts, 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, Keypad lock, emergency call, Set date time manually or automatically, URL & Action URI – Dial Plan, XML Browser, Action URL & Action URI

Yealink T21PN Directory:
Local phonebook up to 1000 entries, Black list, XML/LDAP remote phonebook, Intelligent search method, Phonebook search/import/export, Call history: dialled/received/missed/forwarded

IP-PBX Features:
Anonymous call, anonymous call rejection, Message waiting indicator (MWI), Voice mail, call park, call pickup, Intercom, paging, music on hold. Call completion, call recording, hotdesking

Display and Indicator:
132×64-pixel graphical LCD back light, LED for call and message waiting indication, Intuitive user interface with icons and soft keys, National language selection, Caller ID with name, number

Physical Features:
2xRJ45 10/100M Ethernet ports, 31 keys including 4 soft keys, 4 LEDs: 1 x power, 2 x line, 1 x message. 1xRJ9 handset port, 1xRJ9 headset port, Wall-mountable, Optional power adapter: AC 100~240V input and DC 5V/600mA Output, Power over Ethernet (IEEE 802.3af ), Power consumption: 1.8-2.3W, Operating humidity: 10~95%, Storage temperature: -10~50°C,

Configuration: browser/phone/autoprovision/RPS support, Auto provision via FTP/TFT P/HTTP/, HTTPS for mass deployment, 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), IPv6 open VPN, 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 (T LS), HTTPS certificate manager, AES encryption for configuration file, Digest authentication using MD5/MD5-sess, IEEE802.1X

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