Yealink firmware release
Yealink CT200/CT300 Firmware 320.435.0.25 & Release Notes
This ROM file (121 MB) is ready to download. Load it through the phone's web interface (Settings → Upgrade) or push it with your provisioning server.
DownloadAbout this firmware release
About the CT200/CT300 Firmware 320.435.0.25 & Release Notes
Firmware version 320.435.0.25 and release notes for the Yealink SIP-T30, released May 13, 2026. This copy, last updated by Yealink on May 13, 2026, and you can read it right here or download it.
Before upgrading, check the phone's current firmware under its status menu, read the release notes for known issues, and update a single phone first. On a hosted phone system, firmware is usually pushed through provisioning so every phone updates the same way.
What’s inside
- New features in this release
- Fixed and known issues
- Upgrade notes and compatibility
Phones covered
Yealink phones this firmware release covers
Related
More Yealink firmware & release notes
- ROMCT300 320.435.0.25 - Firmware & Release NoteWithdrawn by YealinkUpdated May 14, 2026SIP-T30
- ROMDownload
- ROMCT300 320.435.0.20 - Firmware & Release NoteWithdrawn by YealinkUpdated Jan 8, 2026SIP-T30
- PDFWithdrawn by Yealink
- ZIPDownload
FAQ
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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.