Special Characters in voicemail.conf generated file


here in Germany it happens that we have special characters like ä, ö, ü, ß, etc. in our names.

Those Chars are not treated correctly when the /etc/asterisk/voicemail.conf is regenerated, they appear like this there:
Felix RöÃ~_nor (actually Felix Rößnor in this example).

The names appear also broken like this in voicemail email notification. If I correct the error directly in the /etc/asterisk/voicemail.conf - everything is fine. Of course only until the file is regenerated by the system.

How can I fix that it treats special chars in names correctly on config file generation? The problem is only in voicemail.


What version of freepbx?