DoSonic- Ultrasonic - Data Over Sound - PoC - Another way of Proximity Communication.
DoSonic- is an Ultrasonic, Ultra low power data transmission communication between devices via speaker  mic. 
Its being tested between two mobiles. One mobile will transmit the data and other will receive. 
App may not work while mobile is in mute. Do unmute and start test
 
Range:
The limits of range between the devices are a product of audio type, volume and power. (Increase the mobile volume to receive the data faster)
Supported Frame Modes:
1. Audible
2. Audible - 7K - Channel - 0
3. Audible - 7K - Channel - 1
4. Cable - 64K
5. Hello-World
6. Ultrasonic
7. Ultrasonic - 3600
8. Ultrasonic - whisper
9. Ultrasonic - Experimental
About DOINFOTECH:
DOINFOTECH is the embedded system based start-up and specialized in Proximity (NFC / QR / BARCODE / BEACON / ULTRASONIC) related technologies.
For more details, please visit our website 
www.doinfotech.com or contact us 
[email protected].
Our social links: 
www.facebook.com/doinfotech ; 
www.twitter.com/doinfotech ; 
www.linkedin.com/company/doinfotech