We have several different phone schemes. Last year we had an automated attendant take all calls which asked you which extension you wanted. You would pick one and if that person happened to be right there it would ring through or it would go to their voicemail. It was a lot easier on us, but we felt that too many calls were going to voice mail. We then turned off the attendant so now you get a real person. right away unless we are all busy. Then you get the machine. It is spring and in spring it is busy, All of the stuff people meant to order during the winter is not getting ordered. Just like trying to get your bike in for service on the first nice spring day.
If you get voicemail it is because all of our lines are busy, simple as that.