Hey everyone!
By some miracle - I actually got it working!!!
Turned out, no configuration was needed in the maintenance tool - there were a few numbers I had to dial to record the messages and set it to forward to BV!
It was all in one of the many user manuals (had to be the pages I didn't check!)
For future reference, and anyone else with the same question, check the User Manual on page 74 onwards and that should help you set up the voicemail!
Thank you very much for all of your help!
