Hi @Alldayrr,
Accessing the 3CX database is an unsupported procedure. It is recommended that you use the 3CX Call Control API to access this information:
https://www.3cx.com/docs/call-control-api/
Kind regards.
We are working on a Linux version of Voicemail Manager. If you are willing to work with beta code, I can probably get you an early release.
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.