We currently don't have a way to automate SMS Broadcasts so that we stay within the FCC regulations. What FreedomSoft does is queue up the messages and then requires a human interaction by design to send them.
In order to stay within the regulations, you can set up the broadcast and then go in and click send for each individual lead. It's a bit of a pain, but it doesn't take too long. And it's legal. :)
To reply to an sms, click the cell phone icon at the top of the screen to go to the Notifications page. Click on the lead you want to reply to. Type in your text message in the space provided and click the blue Send SMS button.