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Why are subsequent requests routed differently from intial requests?

SIP makes a big deal differentiating initial requests from subsequent requests. Why? Read on to find out. Learn more about Contact headers and Route Sets!

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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Why are subsequent requests routed differently from intial requests?

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