Yealink user guide
Yealink T5 Series IP Phones User Guide V84 10
Loading document preview…
About this user guide
About the T5 Series IP Phones User Guide V84 10
Yealink's user guide for the Yealink SIP-T54S, covering everyday calling, contacts, voicemail and phone settings (135 pages). This copy, last updated by Yealink on October 22, 2025, and you can read it right here or download it.
The SIP-T54S 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-T54S is end of life. Support options, dates and replacementsWhat’s inside
- About This Guide
- Related Documentation
- In This Guide
- Getting Started with Your Phone
- Hardware Overview
- T5X Series Hardware
- Power LED Indicator
- Line Key LED
- Screen and Icons
- Idle Screen
- Dialing/Pre-dialing Screen
- Calls Screen
- Icons in the Status Bar
- Line Key Icons
- Call History Icons
- Entering Characters
- Customizing Your Phone
- Changing the Administrator Password
- Wallpaper
- Changing Wallpaper on Idle Screen
- Adding a Wallpaper from a USB Flash Drive
- Adjusting Transparency
- Screen Saver
- Changing the Waiting Time for Screen Saver
- Enabling or Disabling Time & Date and Status Icons Display
- Adding a Screen Saver from a USB Flash Drive
- Setting the Screen Saver Type
- Changing the Screen Backlight Brightness and Time
- Changing the Language
- Time & Date
- Disabling Idle Clock Display
- Setting the Time and Date Manually
- Changing the Time and Date Format
- Setting a Key as Send
- Phone Lock
- Phone Lock Types and Waiting Time
- Setting the Phone Lock
- Locking Your Phone Manually
- Unlocking Your Phone
- Changing Your Phone Unlock PIN
Phones covered
Yealink phones this user guide covers
Related
More Yealink user guides
- PDFYealink T5 Series Prime Business Phones User Guide V84 85DownloadUpdated Oct 22, 2025SIP-T54S
FAQ
Questions about this document
Quick answers, and The Tech Team™ is a call away if you need more.
Need help with your SIP-T54S?
The Tech Team™ can provision, update and troubleshoot your Yealink phones, and move your office onto smplVoice cloud voice.
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.


