Yealink quick start guide
Yealink SIP-T48S Quick Start Guide V84.80 IT
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About this quick start guide
About the SIP-T48S Quick Start Guide V84.80 IT
Quick start guide for the Yealink SIP-T48S: what's in the box, how to connect it and first-time setup (11 pages). This is version 84, last updated by Yealink on December 29, 2025, and you can read it right here or download it.
The SIP-T48S has been discontinued by Yealink, but it's still widely used, and this document is still the reference for setting it up. The Tech Team™ supports end-of-life Yealink phones and can help you plan a replacement when you're ready.
SIP-T48S is end of sale. Support options, dates and replacementsWhat’s inside
- Package contents
- Connecting power, network and handset
- Registering and first-time setup
- Basic call handling
Phones covered
Yealink phones this quick start guide covers
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FAQ
Questions about this document
Quick answers, and The Tech Team™ is a call away if you need more.
Need help with your SIP-T48S?
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Yealink and Yealink product names are trademarks of Yealink Network Technology Co., Ltd. Product information, images and documents are published by Yealink and provided here for reference by smplVoice. Firmware and documents are Yealink’s original, unmodified files.