- What are Threema calls?
- What are the system requirements for Threema calls?
- How do I place a voice or a video call?
- How can I disable Threema calls?
- What is the bit rate of Threema calls?
- I hear my own voice as an echo – what can I do?
- How secure are Threema calls?
- Threema calls: What do those sounds mean?
- How do I adjust the image quality of video calls?
How secure are Threema calls?
Threema calls are as secure as Threema messages. Just like Threema messages, voice calls and video calls are end-to-end encrypted. The call connection is established using Threema messages in the background; therefore, Threema calls are just as trustworthy as chats, and the same verification levels apply.
Instead of a phone number, the Threema ID is used as unique identifier. This allows you to make end-to-end encrypted voice or video calls without disclosing your phone number.
Learn more about Threema calls here.