DTMF Decoder

How to speed up detection such that landline doesn’t disconnect? I tried all three detection methods and fairly noisy to most noisy environments.

iPHone 13. iOS 17.4.1 Never displays anything

Tried every imaginable setting, rebooted phone multiple times (iPhone 10) and nothing would get this app to work.

Don’t buy! I had a cleanse load send signal and it would not pick up tones. These filthy trash con artists stole my .99. Don’t you fall for it

I needed used this to diagnose an issue with a call box for an apartment building. It worked great!

Any way to get this work with new iPhone update??? Great app but now it won’t work....

We played around with it, and it picked up the tones and got them correct.

When I first downloaded this app it didn’t work at all but after rebooting my iPhone 7 Plus it works GREAT! I actually used it at work today to grab the digits of an auto-dialer that dials very fast and it got it right every time. This thing works almost as well as a real digit grabber. I give it 5 stars now.

Used a clear and loud dtmf source and didn’t detect anything. I’d like my money back

I use this app regularly when troubleshooting autodialers and telephone entry systems. It saved me so much time. You must adjust noise levels in order to detect dtmf tones in noisy environments.