Yealink SIP-T42S: Business-Grade 12-Line Gigabit IP Phone

Get the Yealink SIP-T42S at a fraction of the original cost — backed by Reef Telecom's industry-leading 10-year warranty. This ultra-elegant 12-line IP phone delivers Optima HD voice quality with Opus codec support, dual-port Gigabit Ethernet, and a built-in USB 2.0 port for Bluetooth, Wi-Fi, and call recording expansion.

Key Features & Specifications

• 12 SIP Accounts — Manage multiple lines and extensions with ease
• 2.7" Backlit LCD Display — 192x64-pixel graphical display for clear call management
• Dual-Port Gigabit Ethernet — 10/100/1000 Mbps with PC passthrough for single-cable deployment
• Optima HD Voice — Opus, G.722, G.711 wideband codecs for crystal-clear audio
• USB 2.0 Port — Supports Bluetooth (BT41), Wi-Fi (WF50), USB call recording
• 15 Programmable Keys — 5 keys across 3 pages for speed dial, BLF, and line assignment
• PoE Support (IEEE 802.3af) — Power over Ethernet eliminates separate power adapters
• Headset & EHS Support — Compatible with Yealink and third-party headsets
• Wall Mountable — Integrated stand with 2 adjustable angles or wall-mount option
• Auto Provisioning — FTP/TFTP/HTTP/HTTPS for easy mass deployment via Yealink RPS

Broad Platform Compatibility

The SIP-T42S works with all major hosted VoIP platforms and on-premise PBX systems including 3CX, Asterisk, Broadsoft, Genesys, RingCentral, Nextiva, Vonage Business, and 8x8. Ideal for small businesses, offices, hotels, and call centers that need reliable, feature-rich desk phones.

Free shipping on orders over $300. FedEx Priority and First Overnight options available. Every phone ships with Reef Telecom's 10-year warranty for total peace of mind.

Condition

New

Warranty

10-Year Reef Telecom Warranty

Manufacturer Part Number

YEALINK-T42S

Reef SKU

YEALINK-T42S

UPC

6938818304994

Brand

Yealink

Free ground shipping on orders over $300 (contiguous US). Same-day dispatch on orders placed before 4 PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.