How to Backup/Restore Avaya to IIS7.5

In IIS7 and IIS7.5 which runs on Windows Server 2008 or Windows Server 2008 R2, it is not possible to use the WebDav PUT command without ‘authentication’. This is a problem for your Avaya VOIP phones. Avaya uses the PUT command to backup a phone configuration and to store contacts. Now, there are 3 possible [...]