Item(s) Needed:- Access to Yealink Web GUIFind the IP Address of the Yealink PhoneFrom the Yealink phone select MenuSelect StatusSelect NetworkSelect IPv4 StatusTake note of the IP address for the next stepsExporting Diagnostic DataUsing any web browser navigate to the IP address from the above stepLog in. The default credentials for  our Provisioned Phone are admin / 649Navigate to Settings > Configuration on the phone menuOnce there, go ahead and scroll down to the bottom of the page until you see the Export All Diagnostic Files optionNow click Start and replicate the issueOnce replicated, click on Stop then Export to download the diagnostic filesYou will get a file called allconfig.tar which contains all of the diagnostic information