Yealink SIP-T21P E2 Datasheet_V81

Entry-level IP phone with 2 Lines & HD voice
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 132x64-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 accounts, 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 maximizes productivity in both small and large
office environments.
Key Features and Benefits
HD Audio
Yealink HD voice refers to the combination of software and hardware design as well as the
implementation of wideband technology to maximize the acoustic performance. Coupled
with advanced acoustic clarity technology such as full duplex, echo cancellation, adaptive
jitter buffer, etc, the SIP-T21P E2 provides clearer, more lifelike voice communications.
> Yealink HD Voice
> 132 x 64-pixel graphical LCD
with backlight
> Two-port 10/100M Ethernet Switch
Enhanced Call Management
The SIP-T21P E2 supports vast productivity- enhancing features such as XML Browser, call
park, call pickup, BLF, call forward, call transfer, 3-way conference, which makes it the
natural and obvious efficiency tool for today’s busy small and large offices environment.
> PoE support
> Opus codec support
> Up to 2 SIP accounts
> Headset support
> Wall mountable
Efficient Installation and Provisioning
The Yealink SIP-T21P E2 supports efficient provisioning and effortless mass deployment
with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you
realize the Zero Touch Provisioning without any complex manual settings, which makes the
SIP-T21P E2 simple to deploy, easy to maintain and upgrade.
> Simple, flexible and secure
provisioning options
Highly secure transport and interoperability
The communicator uses SIP over Transport Layer Security (TLS/SSL) to provide service
providers with the latest technology for enhanced network security. The range is certified
compatible with 3CX and Broadsoft Broadworks, ensuring excellent compatibility with
leading soft switch suppliers.
SIP-T21P E2 Specifications
Audio Features
Display and Indicator
Network and Security
> HD voice: HD handset, HD speaker
> 132 x 64-pixel graphical LCD with backlight
> SIP v1 (RFC2543), v2 (RFC3261)
> Wideband codec: Opus, G.722
> LED for call and message waiting indication
> Call server redundancy supported
> Narrowband codec: G.711(A/µ), G.729AB, G.726, iLBC
> Dual-color (red or green) illuminated LEDs for
> NAT traversal: STUN mode
> DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO
> Proxy mode and peer-to-peer SIP link mode
line status information
> Full-duplex hands-free speakerphone with AEC
> Intuitive user interface with icons and soft keys
> IP assignment: static/DHCP
> Multilingual user interface
> HTTP/HTTPS web server
> Caller ID with name and number
> Time and date synchronization using SNTP
> Power saving
Phone Features
> 2 VoIP accounts
> QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS
Feature keys
> Call hold, mute, DND
> 2 line keys with LED
> One-touch speed dial, hotline
> 6 features keys: message, headset, redial,
> Call forward, call waiting, call transfer
transfer, mute, hands-free speakerphone
> Group listening, SMS, emergency call
> 6 navigation keys
> Redial, call return, auto answer
> Direct IP call without SIP proxy
> Ring tone selection/import/delete
> Set date time manually or automatically
> Dial plan
> XML Browser, action URL/URI
> Digest authentication using MD5/MD5-sess
> OpenVPN, IEEE802.1X
> 2 x RJ45 10/100M Ethernet ports
> IPv6
> Power over Ethernet (IEEE 802.3af), class 1
> 1 x RJ9 (4P4C) handset port
> Enhanced DSS Key
> Wall mountable
- Yealink SIP-T21P E2 IP phone
> External Yealink AC adapter (optional):
- Handset with handset cord
AC 100~240V input and DC 5V/600mA output
> Loal phonebook up to 1000 entries
> Black list
> XML/LDAP remote phonebook
- Stand
> Power consumption (PoE): 1.3-1.8W
- Quick Start Guide
- Power Adapter (Optional)
209 mm*188 mm*150 mm*41 mm
> Phonebook search/import/export
> Call history: dialed/received/missed/forwarded
IP-PBX Features
> N.W/CTN: 11.7 kg
> Operating temperature: -10~50°C (+14~122°F)
> G.W/CTN: 12.5 kg
> Giftbox size: 215 mm*200 mm*118 mm
> Configuration: browser/phone/auto-provision
> Bridged Line Apperance (BLA)
> Auto provision via FTP/TFTP/HTTP/HTTPS
> Anonymous call, anonymous call rejection
for mass deploy
> Hot-desking, voice mail
> Qty/CTN: 10 PCS
> Operating humidity: 10~95%
> Busy Lamp Field (BLF)
- Ethernet Cable (1.5m CAT5E UTP Cable)
> Power consumption (PSU): 0.8-1.4W
> Dimension (W*D*H*T):
> Smart dialing
Package Features
> Package content:
Other Physical Features
> HTTPS certificate manager
> 1 x RJ9 (4P4C) headset port
> Integrated screenshots
> Transport Layer Security (TLS)
> AES encryption for configuration file
> Volume control keys
> Local 3-way conferencing
> SRTP for voice
> Carton Meas: 615 mm*436 mm*208 mm
> Auto-provision with PnP
> Flexible seating
> Zero-sp-touch, TR-069
> Call park, call pickup
> Phone lock for personal privacy protection
> Executive and Assistant
> Reset to factory, reboot
> Centralized call recording
> Package tracing export, system log
> Visual voice mail
> Call recording
Power Adapter
(DC 5V)
PC Connection
Learn More
To find out how Yealink solutions can help your organization, visit us at or mail to
About Yealink
Yealink (Stock Code: 300628) is a global leading unified communication (UC) terminal solution provider that primarily offers video
conferencing systems and voice communication solutions. Founded in 2001, Yealink leverages its independent research and
development and innovation to pursue its core mission: “Easy collaboration, high productivity.” The company’s high-quality UC
terminal solutions enhance the work efficiency and competitive advantages of its customers in over 100 countries. Yealink is the
world’s second-largest SIP phone provider and is number one in the China market.
Copyright © 2017 Yealink(Xiamen) Network Technology CO., LTD. All rights reserved. No parts of this publication may be reproduced
or transmitted in any form or by any means, electronic or mechanical, photocopying, recording, or otherwise, for any purpose, without
the express written permission of Yealink(Xiamen) Network Technology CO., LTD.
Technical Support
Visit Yealink WIKI ( for firmware downloads, product documents, FAQ, and more. For better service, we
sincerely recommend you to use Yealink Ticketing system ( to submit all your technical issues.
Addr: 309, 3th Floor, No.16, Yun Ding North Road,
Huli District, Xiamen City, Fujian, P.R. China
Copyright©2017Yealink Inc.All right reserved.
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