Here is the Ruroc CHAIN rider-to-rider communications app. Sounds too good to be true. Give it a go and give us some feedback here.
https://www.ruroc.com/en_au/chainCHAIN is compatible with ALL existing communications and Bluetooth systems, allowing you to connect with any rider using any audio hardware for the first time ever.
CHAIN uses VOIP (Voice over Internet Protocol) used in Discord, Skype and WhatsApp, so as long as you have mobile signal, you can talk to anyone, wherever they are in the world, uninterrupted by passing vehicles, buildings or other obstructions.
https://youtu.be/h7TFcyp2iSo