Topic of the week!

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The ACK - a request or response? Does it matter?

In this topic of the week we ask 'Is the acknowledgment (ACK) to a final response to an INVITE a request or a response?'
It turns out there is more to it than just a simple binary response!

Have a go at the exercise below. In the real course you'd be tasked with achieving 5 correct answers in a row - a streak. Get one wrong, and you'll restart the streak! You'll be able to take as many attempts as you need to practice, complete the streak and gain mastery

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The ACK - a request or response? Does it matter?

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