Is there a cell phone/ app/ program that can dial from listening to tones?

Not that I particularly know of, so I’m hoping someone else can answer your question, but this reminds me of the days of old, when people would go “phone phreaking”. If you haven’t heard of it, it’s actually a pretty cool thing that even Steve Wozniak and Steve Jobs were a part of (in fact, Woz built quite the nice tone box!). Basically, you use a box that produces tones to simulate coin insertion and number tones and then you could make free phone calls from pay phones! Here’s the Wiki page for it!