Yealink SIP-T31P – Classic Business IP Phone

The Yealink SIP-T31P is an entry-level, classic business IP phone designed for small businesses and home offices. It delivers essential features like HD audio, dual-line support, and Power over Ethernet (PoE) connectivity at an affordable price. With an intuitive interface, ergonomic design, and robust security protocols, the SIP-T31P ensures reliable communication for daily office operations and small-scale call centers.

Product Features

Dual Lines

Supports up to two SIP accounts, allowing users to manage separate worklines efficiently from a single device.

Backlit Display

Equipped with a 2.3-inch graphical LCD (132×64 pixels) with backlight, providing clear visibility in various lighting conditions.

Superior Audio

Delivers HD voice quality through both the handset and full-duplex speakerphone. Smart Noise Filtering technology minimizes background distractions for professional-grade calls.

Local Conferencing

Built-in support for 5-way conferencing enables direct collaboration with multiple participants without requiring external equipment.

Flexible Power Options

Includes PoE (802.3af) support, allowing the phone to be powered directly through the network cable. An external power adapter can also be used if needed.

Installation Options

Features an adjustable stand with two angles and supports wall mounting for space-saving setups.

Security and Management

Supports TLS 1.3, SRTP, HTTPS, and AES encryption, along with provisioning via Yealink Device Management Platform (YDMP/YMCS) for secure and centralized device control.

Product Specifications

• Ethernet Ports: 2 x 10/100M Fast Ethernet
• Headset Port: 1 x RJ9 with EHS wireless headset support
• Audio Codecs: Wideband (Opus, G.722), Narrowband (G.711, G.729AB)
• Directory: Local phonebook up to 1000 entries; XML/LDAP remote phonebooks supported; includes blacklists and smart dialing
• Call Handling: Supports 2 SIP accounts, call hold, mute, DND, one-touch speed dial, hotline, call forward, call waiting, call transfer
• IP-PBX Features: Busy Lamp Field (BLF), Bridged Line Appearance (BLA), call park, call pickup, centralized call recording
• Audio Processing: VAD (Voice Activity Detection), CNG (Comfort Noise Generation), AEC (Acoustic Echo Cancellation), PLC, AJB, AGC
• Power Consumption: 2.0–3.0W (PSU), 3.0–4.0W (PoE, IEEE 802.3af Class 1 or 2)
• Physical Dimensions: 188mm x 189mm x 162mm x 50mm
• Weight: Approx. 770g–1.1kg depending on stand and handset
• Environmental: Operating temperature -10°C to +45°C; humidity 10%–95%
• Provisioning & Management: FTP/TFTP/HTTP/HTTPS, PnP for mass deployment
• Network Security: TLS 1.3, SRTP, HTTPS certificate management, AES 256-bit encryption
• VPN Support: OpenVPN, IEEE802.1X, L2TP VPN
• Installation: Adjustable desk stand (two angles) or wall-mounted configuration