We have a KX-824 and TVA-50 system with apt integration. Our four incoming lines all go to a central voicemail mailbox in 4-5 rings during office hours. It needs to be at 6 rings to please the office manager!

In the TVA Maintenance Console there are a million places where it seems that time could be increased, but I can't find one that actually does the job. In Service Settings>Parameters>Operator Service for Day the value is 60--that seems like the right place, but changing the value doesn't do anything.

I have literally spent days on this, and am not making progress. Can somebody point out to me where I can set the daytime ring count/no answer time?