Whatsapp update
Group Video and Voice Calls Now Support 8 Participants
Whatsapp doubling the number of participants you can have on a WhatsApp video or voice call from 4 to 8 people at a time.
Note: first of all update to latest version from play store
Source: https://blog.whatsapp.com/group-video-and-voice-calls-now-support-8-participants
By: via MY MAGIC TRICK