T21P Yealink IP Phone for IP PBX
by YEALINK
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Display:
- 2.3-inch graphical LCD with a resolution of 132 x 64 pixels
- Backlit display for easy readability
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Audio Features:
- HD Voice: G.722 codec for wideband audio
- Full-duplex hands-free speakerphone with AEC (Acoustic Echo Cancellation)
- Voice Activity Detection (VAD)
- Comfort Noise Generation (CNG)
- Adaptive Jitter Buffer (AJB)
- Packet Loss Concealment (PLC)
- Supports various codecs: G.711(A/μ), G.729AB, G.726, iLBC, G.722
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Call Handling Features:
- Supports up to 2 VoIP accounts
- Call hold, mute, DND (Do Not Disturb)
- Call forward, call waiting, call transfer
- Redial, call return, auto-answer
- 3-way conferencing
- Speed dial, voicemail, message waiting indicator (MWI)
- Direct IP call without SIP proxy
- Dial plan and XML browser
- One-touch speed dial, hotline, and intercom
- Anonymous call, anonymous call rejection
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Connectivity:
- 2 x 10/100 Mbps Ethernet ports with integrated PoE (Power over Ethernet)
- Headset port: RJ9 for wired headsets
- Wall mountable with optional bracket
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Network and Security:
- SIP v1 (RFC2543), v2 (RFC3261)
- NAT traversal: STUN mode
- IP assignment: Static/DHCP/PPPoE
- Network protocols: IPv4, SIP over TLS, HTTPS, TCP/IP/UDP, RTP/RTCP, DHCP, PPPoE, 802.1x, LLDP, LDAP, QoS
- Transport Layer Security (TLS), Secure Real-time Transport Protocol (SRTP)
- HTTPS and AES encryption for configuration files
- VLAN, QoS, and 802.1x network authentication
- Digest authentication using MD5/MD5-sess
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Management:
- Configuration via browser (HTTP/HTTPS), auto-provisioning via TFTP/FTP/HTTP/HTTPS
- Supports SNMP v1/2
- Reset to factory, reboot, and diagnostic tools
- Compatible with Yealink Device Management Platform (YMDP/YDMP) and Unify Square Device Management
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Power:
- Power over Ethernet (IEEE 802.3af), class 2
- Optional external power adapter (5V/600mA)
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Physical Features:
- Wall-mountable design
- Dimensions: 209 mm x 188 mm x 150 mm (L x W x H)
- Weight: 0.93 kg
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Environmental Requirements:
- Operating temperature: -10°C to 50°C
- Storage temperature: -30°C to 70°C
- Humidity: 10% to 95% non-condensing
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Package Contents:
- Yealink T21P IP Phone
- Handset with cord
- Ethernet cable
- Quick start guide
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Certifications:
- CE, FCC, and RoHS compliant
Model Number | T21P |
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SKU | 17077 |
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T21P Yealink IP Phone for IP PBX
The Yealink T21P IP Phone is a robust and cost-effective communication solution tailored for IP PBX systems, ideal for small to medium-sized businesses. Featuring a 2.3-inch graphical LCD with a backlit display, this phone ensures clear visibility of call information and menu options, making it user-friendly and easy to navigate.
Built with Yealink’s HD Voice technology, the T21P delivers exceptional audio clarity, supported by a wide range of audio codecs, including G.722 for wideband audio. The phone's full-duplex hands-free speakerphone, enhanced with Acoustic Echo Cancellation (AEC), ensures that conversations are clear and free from distortion, providing a professional communication experience.
Designed to handle essential call functions, the T21P supports up to two VoIP accounts and offers a variety of call handling features such as call hold, mute, DND (Do Not Disturb), call forwarding, call transfer, and 3-way conferencing. The phone also includes speed dial, voicemail, and a message waiting indicator (MWI), along with advanced features like direct IP call, anonymous call rejection, and more, making it a versatile tool for any business environment.
Connectivity options on the T21P include dual 10/100 Mbps Ethernet ports with integrated Power over Ethernet (PoE) support, allowing for a clean and efficient setup without the need for additional power cables. A dedicated RJ9 port for wired headsets adds flexibility, enabling users to take calls hands-free. The phone’s wall-mountable design also offers space-saving installation options.
Network security is a key focus of the T21P, with support for Transport Layer Security (TLS) and Secure Real-time Transport Protocol (SRTP) to ensure encrypted communications. It also supports HTTPS, 802.1x network authentication, and VLAN, providing a secure and reliable connection in any network environment.
For ease of management, the T21P can be configured via a web-based interface and supports auto-provisioning for streamlined deployment. It is compatible with the Yealink Device Management Platform (YMDP/YDMP), allowing for centralized management of multiple devices.
Built with durability and reliability in mind, the Yealink T21P is designed to withstand various environmental conditions, making it a dependable choice for businesses seeking a high-quality IP phone that delivers both performance and value. Its combination of advanced features, robust security, and ease of use makes it an excellent addition to any IP PBX system.