Knowledge BaseAudian Phone ArticlesHardwareVoIP PhonesYealinkYealink SupportvoiceUpdated 2/4/2026How To - Factory reset Yealink T series phonesDescription: This article will show you how to do the following.Factory reset a Yealink T series phoneMethods:From the Idle screen, hold the OK button on the phone.When prompted, press OK again to reset the device to factory default settings.After phone resets and loads config files, user will be prompted for last 5 digits of the SN (Located above MAC address on sticker, all numeric). Migrated from Confluence on 2026-02-03 Original Confluence Article
