Changing the Whatsapp number might be one of the conditions that is often experienced by users. Whether it's for reasons of wanting to make contacts more private, or because the old number is no longer active.
The problem is that many of them are worried that doing so will delete all chats, contacts, or important data in them. So you won't lose your important chat data if you change your number through this feature.
One of the main features of WhatsApp besides sending text messages is video calls. This feature allows users to make phone calls with free video without using regular credit and rely on internet or WiFi quota.
WhatsApp has also improved the capabilities of its video call feature. From what was originally used only to connect 2 contacts, now 8 different contacts can join in the same video call.