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Knowledge base centre

Yealink Disable Q.850; cause=xx

First start by locating the IP address of the Yealink handset by pressing the OK button, once logged into the web-GUI of Yealink complete the following steps. 

Add M7:sip.call_fail_use_reason.enable=0 into the server URL field, found under settings and auto provision. 

Once complete click the Auto Provision Now button.

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