This is intriguing. Just testing on a v16 system and getting an error:
SQLSTATE[42S02]: Base table or view not found: 1146 Table 'asterisk.disa' doesn't exist<br><br>Error selecting from disa::
So it requires DISA be installed on the system?
Then, I installed DISA and get this error:
SQLSTATE[42S02]: Base table or view not found: 1146 Table 'asterisk.vmblast' doesn't exist<br><br>Error selecting from Voicemail Blasting::
So it also requires vmblast?