Yealink SIP-T31W IP Phone (T31W)
The Yealink SIP-T31W is an affordable and business-ready SIP VoIP phone featuring built-in dual-band Wi-Fi, a 2.8″ color screen, HD voice, PoE support, and up to 2 SIP accounts — ideal for small offices and wireless environments.
Yealink SIP-T31W — Wireless IP Phone with Integrated Dual-Band Wi-Fi
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Yealink SIP‑T31G IP Phone (T31G)
Key Features:
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2.8″ Color Display: Backlit 2.8‑inch color screen for clear call information and menus.
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Up to 2 SIP Accounts: Supports two VoIP accounts/lines for flexible line handling.
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HD Voice Quality: Yealink Optima HD Voice with wideband audio codecs for crystal‑clear conversations.
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Gigabit Ethernet: Dual 10/100/1000 Mbps network ports with Power over Ethernet (PoE) support (optional).
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Essential Telephony Features: Caller ID, call hold, transfer, forward, conferencing, redial, speed dial, and more.
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Headset Support: RJ9 headset port and EHS adapter compatibility for wireless headsets.
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Easy Provisioning: Support for auto‑provisioning via Yealink RPS/Boot for centralized deployment.
Hardware & Technical Specs:
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Display: 2.8″ color LCD, backlit
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SIP Accounts: Up to 2
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Ethernet: Dual Gigabit Ethernet (10/100/1000 Mbps)
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Power: PoE (IEEE 802.3af) or optional power adapter
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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
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Connectivity: RJ9 headset port; EHS support with appropriate adapter
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Protocols & Security: SIP v1/v2 (RFC 3261), VLAN, QoS, HTTPS/TLS/SRTP where supported
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Functional Keys: Line keys, soft keys, navigation keys, hold, transfer, mute, speaker, redial
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Physical: Desktop stand with adjustable tilt; optional wall‑mountable
