Yealink
Yealink SIP-T42G 12-Line Gigabit VoIP Phone | HD Voice, PoE, Dual GigE
PO and Net 30 available for schools, government, hospitals, and law firms.
Description
Description
Yealink SIP-T42G 12-Line Gigabit IP Phone
Save big on the Yealink SIP-T42G — a feature-rich 12-line business VoIP phone delivering Optima HD voice quality and dual-port Gigabit Ethernet connectivity. Professionally refurbished to like-new condition and backed by Reef Telecom's industry-leading 10-year warranty.
Key Features
- Up to 12 SIP accounts for multi-line call management
- Yealink Optima HD Voice with wideband codec (G.722)
- 2.7" backlit LCD display (192x64 pixel resolution)
- Dual-port Gigabit Ethernet (10/100/1000 Mbps) with PC passthrough
- IEEE 802.3af Power over Ethernet (PoE) support
- 15 programmable keys (5 keys across 3 pages) for BLF, speed dial, and more
- 3-way conference calling, call transfer, call forwarding
- Headset and EHS36 wireless headset support (RJ9 port)
- Wall mountable with integrated adjustable stand (2 angles)
- Secure provisioning via FTP/TFTP/HTTP/HTTPS with AES encryption
Platform Compatibility
The SIP-T42G is compatible with major hosted PBX and UCaaS platforms including 3CX, Asterisk, BroadSoft BroadWorks, 8x8, RingCentral, and many more — making it an ideal desk phone for offices, call centers, and common areas.
Why Buy Refurbished from Reef Telecom?
Every refurbished Yealink SIP-T42G is meticulously inspected, tested, and restored to full working condition. With our 10-year warranty and free shipping on orders over $300, you get enterprise-grade reliability at a fraction of the cost of new equipment.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

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Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.
Every delivery’s carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, you’ll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 80 million deliveries and removed over 56 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
Reef Telecom Proudly Supports
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Coral Restoration Foundation
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Ocean Conservancy
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Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.