Just like messages, Threema Work’s voice, video, and group calls are end-to-end encrypted and thus tap-proof.
Neither a SIM card nor a phone number is required. This allows you to make voice, video, and group calls on tablets and iPads.
Required app version for voice calls:
Required app version for video calls:
Required app version for group calls:
Threema calls can be completely disabled. You can also only disable group calls or only disable video calls without disabling voice calls.
Please find additional information here.
