Yealink technical note
Using Security Certificates on Yealink IP Phones V1.4
A Yealink technical note for the Yealink SIP-T57W (26 pages).
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About this technical note
About the Using Security Certificates on Yealink IP Phones V1.4
A Yealink technical note for the Yealink SIP-T57W (26 pages). This is version 1.4, last updated by Yealink on May 25, 2026, and you can read it right here or download it.
What’s inside
- Introduction
- Configuring Trusted Certificates on Yealink IP Phones
- Configuring Trusted Certificate via Web User Interface
- Configuring Trusted Certificate Using Configuration Files
- For Old Auto Provisioning Mechanism
- For New Auto Provisioning Mechanism
- Configuring Device Certificates on Yealink IP Phones
- Configuring Device Certificates via Web User Interface
- Configuring Device Certificates Using Configuration Files
- Using Certificates on Yealink IP Phones
- Appendix A X.509 Certificate Structure
- Appendix B Trusted Certificate Authority List
- Appendix C Creating Custom Certificates
Phones covered
Yealink phones this technical note covers
Versions
Other versions of this document
- FILEUsing Security Certificates on Yealink IP Phones V1.0.pdfWithdrawn by YealinkUpdated Apr 3, 2026SIP-T57W
- FILEUsing Security Certificates on Yealink IP Phones V1.0.pdfWithdrawn by YealinkUpdated Apr 3, 2026SIP-T26P
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FAQ
Questions about this document
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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.


