How to reduce Data usage while making WhatsApp voice & video calls

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WhatsApp recognized that data cost is a factor for voice & video calls

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WhatsApp update (version 2.12.250 on Android) introduced the Low Data Usage option

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It saves around 300kb of data over a 1 min phone call

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To enable Low Date Usage option, tap on Settings

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Select Chats and Calls and then tick the Low Data Usage

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