Product Details
| Manufacturer | Yealink |
| Model Number | SIP-T42U |
| Product Dimensions (L x W x H) | 18.9 x 21.2 x 17.5 cm; 850 g |
| Date First Available | 29 July 2021 |
Product Description
The SIP-T42U IP phone is a feature-rich business tool designed for excellent communication and extended functionality, equipped with 12 lines and numerous programmable keys to enhance productivity. It combines Yealink Optima HD Voice technology and the wideband Opus codec to deliver superb audio quality and crystal-clear voice communications, providing a quicker and more responsive call experience. The T42U features dual USB ports, allowing for Bluetooth, Wi-Fi, USB headset, and USB recording functionality, with the flexibility to use any two simultaneously based on your needs. The new T4U series maintains the elegant appearance of the T4 line but includes improvements for greater interoperability and collaboration. With Yealink Optima HD Voice technology and the versatile Opus codec, the phone ensures high-definition audio performance even in varying network conditions, and its HAC handset enhances clarity for users with hearing loss. Efficient installation and provisioning are supported through Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism, enabling Zero Touch Provisioning without complex manual settings. The unified firmware and auto-p template streamline management and maintenance, saving time and costs for businesses. For secure transport and interoperability, the T4U series employs SIP over Transport Layer Security (TLS/SSL) and is compatible with leading soft switch suppliers like 3CX and Broadsoft Broadworks, offering dual firmware images for enterprise-level protection during upgrades.