Thanks for replying.
I understand that the assigned buttonprofile should overwrite the default button assignment, but that is my problem;
There are some Snom300 phones with assigned buttonprofiles and they still have the default Snom300 buttons.
So my guess was that the button assignment is not working.
Please note that the button assignment for my Snom320 phones is working fine, only the Snom300 phones are not getting the alternate defined buttons.
I have reverted back to PBXnSIP version 4.2.0.3958 and now also the buttons for the Snom300 phones are provisioned correctly again.
Kind regards,
Rene.