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Using Security Certificates on Yealink IP Phones

A Yealink document for the Yealink W53H and W53P (25 pages).
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About this document

About the Using Security Certificates on Yealink IP Phones

A Yealink document for the Yealink W53H and W53P (25 pages). This copy, last updated by Yealink on January 29, 2026, and you can read it right here or download it.

These phones have been discontinued by Yealink, but they're still widely used, and this document is still the reference for setting them up. The Tech Team™ supports end-of-life Yealink phones and can help you plan a replacement when you're ready.

W53H is end of sale. Support options, dates and replacements

What’s inside

  1. Introduction
  2. Configuring Trusted Certificates on Yealink IP Phones
  3. Configuring Trusted Certificate via Web User Interface
  4. Configuring Trusted Certificate Using Configuration Files
  5. For Old Auto Provisioning Mechanism
  6. For New Auto Provisioning Mechanism
  7. Configuring Device Certificates on Yealink IP Phones
  8. Configuring Device Certificates via Web User Interface
  9. Configuring Device Certificates Using Configuration Files
  10. Using Certificates on Yealink IP Phones
  11. Appendix A X.509 Certificate Structure
  12. Appendix B Trusted Certificate Authority List
  13. Appendix C Creating Custom Certificates

Phones covered

Yealink phones this document covers

Yealink W53H
W53HEnd of Sale
Yealink W53P
W53PEnd of Sale

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FAQ

Questions about this document

Quick answers, and The Tech Team™ is a call away if you need more.

Contact us (800) 943-7675

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Talk to a technician (800) 943-7675

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.