Converting to Auto Provisioning

[Mauro]

Are you saying that autoprovisioning changes only parameters that have not been breviously modified by the final user?
Strange... I'm sure that, when I did some provisioning tests, it worked like this:
step1: autoprovisioning, with ringtone1 along with many other settings.
step2: manually changing ringtone on the phone to ringtone2
step3: making any change in autoprovisining file, then restarting the phone, that updates config
step4: checking: the phone has automatically got ringtone1 back.

Please notice that in the tftp server logs you may see the phone download autoprovisioning file every time it boots up.... but this does not mean it re-applies the provisioning file each time.
AFAIK, if the file is unchanged (I don't know how it does control if the file "changed", checking last modify date maybe? Or comparing content?), the phone does nothing (and thus, does not overwrite any user setting modified after the provisioning occured time ago). If the file is changed, it completely re-applies it (you see "updating config" on display for a short time), overwriting all setting that are mentioned inside the provisioning file (I guess that all other settings work like the ringtone setting does!).

I don't know about a way to avoid overwriting user-customized values, if they are also mentioned in the autoprovisioning file (that might be interesting for some aspects), but I'm not a real "expert".
Who knows, maybe they changed something. I did the tests mentioned with series 6x firmware. I have never tried series 7x firmware yet (and that firmware changed a lot about autoprovisioning, considering that introduced a completely new autoprovisioning file format).
So, I hope someone from Yealink may give some better hint...

PS: What do you mean with "manually entering the auto provisioning information", exactly? I never used it, but in the Upgrade -> Advanced screen from the phone web config, there are some controls to force autoprovisioning (note: the autoprovisioning on boot-up set by the DHCP server option -what I use- to make the phone point to a TFTP server -maybe also a HTTP server without authentication may fit- works also if settings in this screen are not used and the "Check New Config" option is disabled) and specify a server URL, that may probably be also an HTTP (or FTP) server with autentication.