Perhaps there is a message for a coworker of yours and the operator has their email address
. The answering service can be set up to dispatch their messages directly to them instead of clogging up your inbox or the inboxes of everyone else in your office. This is an example of what makes an answering service so good, which is targeting handling calls and delivering messages to relevant parties and doing so in a quick and efficient manner. Much like a receptionist that might work in your building, answering service operators are able to know how to handle callers on a call-by-call basis instead of just treating everything in the same way time after time. Try having your corporate voicemail do that.