Voice and video calls

Just like messages, Threema Work’s voice and video 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 and video calls on tablets and iPads.

Required app version for voice calls:

  • Android: Threema Work 3.21k or above
  • iOS: Threema Work 3.0.1k or above

Required app version for video calls:

  • Android: Threema Work 4.41k or above
  • iOS: Threema Work 4.6.1k or above

Threema calls can be completely disabled, and you can alsodisable video calls without disabling voice calls.

Please find additional information here.