This new upcoming feature from Whatsapp will be very useful for their users.

 WhatsApp will launch a new feature that allows users to join Whatsapp videocall ongoing..

• WhatsApp has introduced a new feature in the app that allows users to join a group voice call or group video call after they start.
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•  The join call feature allows people to join a group call by simply going to the call tab in the app. 
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• This feature also has a new call information screen that allows users to see who is on the call and invited users who have not yet joined. 
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• A statement from the platform said: "Merge calls can reduce the burden of receiving group calls in the first place, and bring spontaneous and relaxed personal communication to group calls on WhatsApp." 
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• Before the new update, missed call notifications The user must ask the caller to add it.
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•  Although this method does allow someone to join the call later, it is very inconvenient. 
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• People who call and talk to people who have joined the conversation often miss text messages from people who missed them and ask them to invite them again.
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•  This feature allows users to join group calls. 
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• In addition, if the call is still in progress, the user can leave the existing call and join later. The new update accompanies the new WhatsApp update and will soon cover all Android and iOS devices.