Log into the web interface of the phone and navigate to “Upgrade” and “Advanced”. In newer models it may “Settings” and “Auto Provision”. In provisioning server, add this URL http://(domain url)/prov/yealink-00045332xx.cfg, 00045332xx being the yealink phone’s MAC address.
Next go to General settings on the PBX interface and scroll to the bottom of the page to Provisioning Parameters, and select a default dial plan scheme and enter the username and password for the phones.
PLEASE NOTE unless you enter a password into the ‘Authentication password’ field the system generates secure passwords which are encrypted by the platform. You need to enter a password here or you will not be able to get on the interface of the phones.
The Authentication user, Authentication password and Authentication PIN settings allow administrators to provision phones and log into a phone’s web interface remotely. These settings enable administrators to use identical usernames and passwords for all devices in a domain, simplifying the authentication process from the GUI of the phone. The password will bypass users’ passwords (the web interface passwords), so users will not be able to use their passwords; hence, this setting can be used to keep users out of the phone’s web interface and prevent them from inadvertently changing anything.
Open MAC Provisioning
Make sure that “Check New Config” is set to “Power on”.
Open MAC Provisioning on the PBX interface
For security reasons, navigate to the extension level and activate “Open account for MAC based provisioning” as shown, to allow the phone to provision to that specific account.
You don’t have to reboot the phone for provisioning, it is okay to save the information and then use the “Auto Provision Now” button.