The Yealink T21P is now end of life. The direct replacement is the Yealink T31G
The Yealink 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 Yealink 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.
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The Yealink T21P E2 IP Phone is a 2-line entry level VoIP phone that offers a smooth user experience. The T21P E2 features a phone directory, HD-Voice, a 5-line graphical LCD screen and supports PoE.
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.
Enhanced Call Management
The SIP-T21P E2 supports vast productivity-enhancing features such as XML Browser, callpark, 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.
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 realise the Zero Touch Provisioning without any complex manual settings, which makes the SIP-T21P E2 simple to deploy, easy to maintain and upgrade.
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.
Yealink T21P Key Features
- 2 Line Appearances
- Dual-port 10/100 Ethernet
- Yealink Optima HD Voice Supported
- Up to 2 SIP accounts
- Full-duplex hands-free speakerphone
- No expansion modules supported
- RJ9 Headset Port
- 132×64-pixel graphical LCD display with backlight
- Wall mountable
Yealink T21P VoIP Phone – Technical Specifications
Audio Features
- HD voice: HD handset, HD speaker
- Wideband codec: 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
Directory
- Local phonebook up to 1000 entries
- Blacklist
- XML/LDAP remote phonebook
- Smart dialing
- Phonebook search/import/export
- Call history: dialed/received/missed/forwarded
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
- Enhanced DSS Key
IP PBX Features
- Busy Lamp Field (BLF)
- Bridged Line Appearance (BLA)
- Anonymous call, anonymous call rejection
- Hot-desking, voice mail
- Flexible seating
- Call park, call pickup
- Executive and Assistant
- Centralised call recording
- Visual voicemail
- Call recording
Display and Indicator
- 132 x 64-pixel graphical LCD with backlight
- LED for call and message waiting indication
- Dual-colour (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 1
- 1 x RJ9 (4P4C) handset port
- 1 x RJ9 (4P4C) headset port
Other Physical Features
- Wall mountable
- External Yealink AC adapter (optional)：
- AC 100~240V input and DC 5V/600mA output
- Power consumption (PSU): 0.8-1.4W
- Power consumption (PoE): 1.3-1.8W
- 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 using MD5/MD5-sess
- OpenVPN, IEEE802.1X
- IPv6
- LLDP/CDP/DHCP VLAN
- ICE
Package Features
- Package content:
– Yealink SIP-T21P E2 IP phone
– Handset with handset cord
– Ethernet Cable (1.5m CAT5E UTP Cable)
– Stand
– Quick Start Guide
– Power Adapter (Optional)
