Play a tone, any tone. This app is basically two apps in one. One side is a simple DTMF tone generator, and the other side is produce-any-tone-you-want signal generator. You can hear what any frequency sounds like. The help screen in-app also provides the official frequencies for DTMF tones. When playing back recorded DTMF numbers, put your Android phone near the analog telephone's speaker so that you can dial through your PSTN (Public switched telephone network) phone.
1. DTMF specific tones
2. Ability to save unlimited DTMF tones for common use (and change playback time for tone and pause)
3. Proper playback for recorded numbers so that you can dial by clicking a single button
4. Ability to play any tone in the second app page.
5. No permissions required! No ads!
6. Easy share if you like it!
Q: What are all the pause and play times?
A: By default, recorded playback transmits signaling rate of 93 ms per tone with 40 ms between tones. Pause characters are 1 second.
Q: What does DTMF stand for?
A: Dual-tone multi-frequency signaling.
Q: What is DTMF used for?
A: Telecommunication signalling over analog telephone lines, aka tone dialing.
Hi, my name is Danial Goodwin. I am a developer who creates many different applications. I love working on them, making them better, and providing features users didn't even know they wanted yet ;). But, unfortunately, I don't have time to keep updating every single one of them. The good news is that I love getting feedback <email@example.com> about my apps AND the more feedback I get about a particular app, the more likely I am to update it, especially if many users request the same feature. =]
More technical info:
DTMF Tone Generators allow Dual-Tone Multi-Frequency (DTMF) signaling which allows machine control remotely over standard telephone lines. Some HAM radio operators use this too.
OPEN SOURCE: I've decided to share all the source code for this app on GitHub! https://github.com/danialgoodwin/android-simply-tone-generator
DISCLAIMER: This app is not meant to be for everybody. Development work going into this app will be for the small percentage of people that do like it. ;)