You can send messages, pictures and files while on any call.
- Tap the arrow in the upper left corner to minimize the call. Now you can write messages or send pictures while remaining on the call.
- Tap the green bar at the top of your screen to switch back to the call.
When the video call is minimized, your video will freeze until you maximize the call UI again.
On iOS: Be aware that switching the account will hang up the call.