Is there a smart dialer site that has a free trial period to see if it's right for me?

The most important thing for me is that the phone works without failures and you don't have to spend a lot of time setting it up. https://www.mightycall.com/ turned out to be quite clear, although at first it took some getting used to. It's good that you can set up call forwarding and record calls, it helps in your work. So far I'm happy with the choice.