Yealink SIP-T34W 4-Line Wi-Fi Color LCD SIP Phone — SIP-T34W

The Yealink SIP-T34W is a 4-line SIP desk phone featuring a 2.4-inch color LCD display, dual-port Ethernet, and built-in Wi-Fi for flexible wired or wireless network deployment. Designed for small to medium-sized businesses requiring a feature-rich, affordable SIP phone with wireless connectivity, it delivers Yealink's proven audio quality and broad UC platform compatibility in a compact, modern form factor.

Product Details

• Part Number: SIP-T34W
• Manufacturer: Yealink
• Model: SIP-T34W
• Product Type: Wi-Fi SIP IP Phone

Key Features

• 4 Lines: Multi-line call management for busy office users
• Built-in Wi-Fi: Wireless network connectivity — no Ethernet cable required
• 2.4-inch Color LCD: Clear display for call management and directory navigation
• Dual-Port Ethernet: PC passthrough for single-cable desk deployment when wired
• Yealink HD Voice: Wideband audio for superior call clarity
• Broad SIP Compatibility: Works with major SIP platforms and IP PBX systems

Technical Specifications

• Part Number: SIP-T34W
• Lines: 4
• Display: 2.4-inch color LCD
• Ethernet: 2x RJ-45 (LAN + PC passthrough)
• Wi-Fi: Built-in 802.11 a/b/g/n/ac (dual-band)
• Power: IEEE 802.3af PoE or optional AC adapter
• Protocol: SIP

Use Cases

• Wireless Desk Phone: Wi-Fi SIP phone for desks without Ethernet cabling
• SMB Telephony: Affordable 4-line SIP phone for small and medium businesses
• Hot Desking: Wireless phone for flexible workspace and hot desk environments
• UC Deployments: Compatible with 3CX, FreePBX, Asterisk, and major SIP platforms

Compatibility Notes

• Compatible with major SIP-based IP PBX and UC platforms including 3CX, FreePBX, Asterisk, and Cisco UCM
• Wi-Fi 802.11 a/b/g/n/ac dual-band — connects to 2.4GHz and 5GHz networks
• Powered via IEEE 802.3af PoE when connected via Ethernet, or optional AC adapter
• Dual-port Ethernet PC passthrough available when using wired connection

Frequently Asked Questions

Can the SIP-T34W connect via both Wi-Fi and Ethernet simultaneously?

The SIP-T34W connects via either Wi-Fi or Ethernet — not simultaneously. When connected via Ethernet, the PC passthrough port is available. When using Wi-Fi, the phone operates wirelessly without an Ethernet connection.

Is the SIP-T34W compatible with Microsoft Teams?

The SIP-T34W is a standard SIP phone and is not natively certified for Microsoft Teams. For Teams-native desk phones, consider Yealink's Teams-certified models such as the T55A or T58A.

Does the SIP-T34W support PoE when using Wi-Fi?

PoE requires an Ethernet connection. When using Wi-Fi only, the SIP-T34W must be powered via the optional AC power adapter.

Whether you are deploying SIP phones in a wireless office environment, equipping hot desks with flexible Wi-Fi connectivity, or standardizing on Yealink SIP phones across an SMB UC deployment, the Yealink SIP-T34W delivers the 4-line management, Wi-Fi flexibility, and Yealink audio quality your communications demand.