Can you call the WhatsApp number that's already registered to use WhatsApp Business API?

No. If you place a WhatsApp call to a number using the WhatsApp Business API, it will appear to be invalid as the screenshot below.

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• Could I still use WhatsApp Messenger App and WhatsApp Business App?

  Once the number is registered with WhatsApp Business API, you will not be able to register the same number for normal WhatsApp apps.

• Can we still use this number to call?

  Yes, you can still use the connected WhatsApp number to make phone calls.

• What is WhatsApp Business API?

  WhatsApp Business API allows medium and large businesses to communicate with their customers at scale. Using the API, businesses can connect thousands of agents and bots to interact with customers programmatically and manually. You could check out ...

• What countries can I reach with the WhatsApp Business API?

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• I have a smartphone with the phone number assigned to WABA. Do I have to keep this device connected or online? Does WhatsApp check that the line is active? Can I switch off the device and have the Stella chatbot still work?

  If you have registered a phone number with WABA (WhatsApp Business API) in Stella, there is no need for the use of a device as there is no interface for WABA. Also, if you have registered a phone number with WABA. that number could not be used on any ...