WhatsApp is working on new features to bring improvements to voice and video calling. Read this story to learn more details.

If any emoji has oomph, it's this one. There's no silly appendages, no muted colors. Sending a red heart emoji is as close as you can get to wearing your heart on your digital sleeve. Twitter ...

WhatsApp is testing new features for Android, including a mute button for voice calls, camera control for video calls.