That helped filter out all of the non-emergency calls....but when I saw the Call Center's number pop up on my caller ID I knew it was a legitimate issue.You should be able to set the call center criteria to whatever fits your situation using a combination of Google Voice numbers, call forwarding from your normal phone, and/or ring through apps that silence all calls except select numbers.

I have not been able to answer my phone more & more lately, which means I miss calls and quite often the callers dont leave a message.

@Benjamin Blackburn I use a webform for my callers (If they're not in the system).

If you’re a low level caller and you’re not doing millions and millions of calls every single day, you’re not going to be on the FCC’s radar here.

Pull good data and get a cold caller who is a killer. 

Long time listener, first time caller.

@Ryan York I have found it to be easy to hire a few callers and have them work under your supervision!

Hello Everyone, Long time listener, first time caller/poster. 

Also, you can use a call center with scripted operators to capture caller info live.

I've gotten a few calls where the caller saw the sign on the occupied unit and not the vacant unit, even though the vacant unit was just one block over.