Yeastar Products Firmware Download

P-Series PBX System Firmware

Version Firmware Number Model Last Update
22.3GA 37.21.0.117 P520/P550/P560/P570 2026-01-29 Release Notes BIN
22.3GA 83.21.0.117 Software Edition (Ubuntu) 2026-01-29 Release Notes BINISO
22.3GA 83.21.0.117 Software Edition (Debian) 2026-01-29 Release Notes BINISO
23.1Beta 37.22.0.17-beta P520/P550/P560/P570 2026-02-05 Release Notes BIN
23.1Beta 83.22.0.17-beta Software Edition (Ubuntu) 2026-02-05 Release Notes BINISO
23.1Beta 83.22.0.17-beta Software Edition (Debian) 2026-02-05 Release Notes BINISO

Important"Beta" version firmware should be installed for evaluation purposes only. The firmware of Software Edition and Appliance Edition are not compatible with each other. Using a P-Series appliance firmware to upgrade a software edition will cause system crash.

* Appliance Edition Firmware Upgrade Guide | Software Edition Firmware Upgrade Guide, ISO Installation Guide

* "GA" means "General Availability": the final release ready for use in a production environment.

* The activation of the P-Series Software Edition requires a license. You can apply a trial license here.

* The availability of the P520 PBX model is subject to regional sales policy.

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