The Yealink SIP-T31P is a robust entry-level 2-line IP phone designed for efficient voice communication in business environments. It features a 2.3-inch (132×64 pixels) backlit graphical LCD that provides clear visuals for call info and menus. Supporting up to two SIP accounts, the T31P facilitates local 5-way conferencing, enabling group collaboration without external bridges.

Equipped with Yealink HD Voice technology and smart noise filtering, it delivers crystal-clear audio via both the handset and full-duplex speakerphone. It supports wideband codecs including Opus and G.722, as well as common narrowband codecs for versatile compatibility. Advanced voice enhancements such as Acoustic Echo Cancellation (AEC), Voice Activity Detection (VAD), and Packet Loss Concealment (PLC) ensure superior call quality.

Connectivity includes dual 10/100 Mbps Ethernet ports with integrated Power over Ethernet (IEEE 802.3af, class 2), allowing flexible and clean deployment without the need for a separate power adapter. The device provides RJ9 handset and headset ports with support for electronic hook switch (EHS) wireless headsets.

Designed for ease of use, the SIP-T31P offers an adjustable multi-angle stand and is wall-mountable, fitting various workspace setups. It runs unified firmware shared across the Yealink T3 series, simplifying management and updates, and supports centralized device management through YDMP and YMCS platforms.

Security features include support for modern TLS versions for secure provisioning and communications. The phone’s durable design and enhanced chipset contribute to long-term stable performance, making it an excellent choice for growing businesses needing reliable and cost-effective IP telephony solutions.