No JB, Do not install APP, No Internet Connection
Analog Voice Encryption
Encrypting voice of mobile calls (GSM, CDMA, LTE, APP ... calls) directly. Encrypt voice contents before sending into cell phone. Prevent intercept at phone, base station and Telecom server site. Analog encryption guard against crack and hack. Secure your voice contents extremely.
No APP Installation
No Server involvement
project doesn’t need internet connection. project communicate through voice channel. Won’t save or transfer log/key by 3rd party. Less exposure and higher security.
Provide unlimited encrypted phone call minutes. No licenese limitation. Secure phone call forever.
This video is only to explain and understand the idea well
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The project is dedicated to working on the Raspberry pi3
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Final delivery time - maximum 5 days
Programming language: - Java or Python
7 freelancers are bidding on average $217 for this job
I have RP3, soundcard, python exp with audio capture, reproduce code. I would use a handshake and encrypt code I have used before for industrial purposes.