Kwebbl - Firmware update Yealink T4-U Series – Maintenance details

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Welcome at Kwebbl's statuspage. On this page you will find the status of our Cloud Communications platform, including maintenance updates and incidents.



JUL16

Firmware update Yealink T4-U Series

CompletedJuly 16, 2026 at 5:00 PM – July 17, 2026 at 5:00 AMUTC

Affects

PBX

Under maintenance from 5:00 PM to 5:00 AM

Provisioning

Under maintenance from 5:00 PM to 5:00 AM

Updates
  • Completed
    July 17, 2026 at 5:00 AMUTC
    Completed
    July 17, 2026 at 5:00 AMUTC
    Maintenance has completed successfully
  • In progress
    July 16, 2026 at 5:00 PMUTC
    In progress
    July 16, 2026 at 5:00 PMUTC
    Maintenance is now in progress
  • Planned
    July 09, 2026 at 1:31 PMUTC
    Planned
    July 09, 2026 at 1:31 PMUTC

    Please be advised that Kwebbl Smart Cloud Communications will update the firmware of several Yealink devices in our Auto Provisioning to version 87. Please note that the device will update its firmware automatically after it will become available within 12 hours in the auto provisioning. 

    Devices:

    • Yealink SIP-T41U

    • Yealink SIP-T42U

    • Yealink SIP-T43U

    • Yealink SIP-T44U

    • Yealink SIP-T46U

    • Yealink SIP-T48U

    The new firmware will become available on Thursday 16-07-2026 19:00 CEST. The devices are expected to upgrade within 12 hours according to the provisioning cycle.