How an incoming Whatsapp call will be redirected to MT device if device is in RRC idle state?

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1

Hello Experts.

How an incoming Whatsapp call will be redirected to MT device if device is in RRC idle state?

Is there any paging?

2

WhatsApp MT Call from network is simply a DL data stream.

3

So will network page?

And in response will device initiate service request with cause MT service?

4

No.

Remember these OTT apps from network perspective are just data request.

I believe RRC Request will be Mobile Originating Data.

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