Yealink SIP‑T31G IP Phone (T31G)
Key Features:
2.8″ Color Display: Backlit 2.8‑inch color screen for clear call information and menus.
Up to 2 SIP Accounts: Supports two VoIP accounts/lines for flexible line handling.
HD Voice Quality: Yealink Optima HD Voice with wideband audio codecs for crystal‑clear conversations.
Gigabit Ethernet: Dual 10/100/1000 Mbps network ports with Power over Ethernet (PoE) support (optional).
Essential Telephony Features: Caller ID, call hold, transfer, forward, conferencing, redial, speed dial, and more.
Headset Support: RJ9 headset port and EHS adapter compatibility for wireless headsets.
Easy Provisioning: Support for auto‑provisioning via Yealink RPS/Boot for centralized deployment.
Hardware & Technical Specs:
Display: 2.8″ color LCD, backlit
SIP Accounts: Up to 2
Ethernet: Dual Gigabit Ethernet (10/100/1000 Mbps)
Power: PoE (IEEE 802.3af) or optional power adapter
Audio:
• Optima HD Voice with wideband codec support (Opus, G.722, etc.)
• Full‑duplex speakerphone with Acoustic Echo Cancellation (AEC)Supported Codecs: Opus, G.722, G.711(A/µ), G.723.1, G.726, G.729AB, iLBC
Connectivity: RJ9 headset port; EHS support with appropriate adapter
Protocols & Security: SIP v1/v2 (RFC 3261), VLAN, QoS, HTTPS/TLS/SRTP where supported
Functional Keys: Line keys, soft keys, navigation keys, hold, transfer, mute, speaker, redial
Physical: Desktop stand with adjustable tilt; optional wall‑mountable
Description
Yealink SIP‑T31G — Gigabit Business IP Phone with HD Voice
Technical Datasheet
You can download the full technical documentation for this product from the link below:
Download PDF Datasheet







