WHAT IS Signal?
Signal is a messaging service for your Smartphone (or PC). You can easily communicate with your team or individuals, eg. your trainee.
You can use the tool for group communication in your team for fast messaging, instead of long e-mail communication.
You can also use it with you trainees in the same way. Sometimes it’s easier to reach the trainees through messages instead of e-mail or phone.
This app advertises good data protection.