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SIP packets are plain text. A clumsy security risk?

SIP signalling packets are transmitted over the network in plain text. Is this safe from malicious, exploitative capture en-route?
How is SIP made secure? What the video to find out!

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

Note: On smaller screens this imported exercise may not be formatted correctly
For the best experience try on a larger screen

SIP packets are plain text. A clumsy security risk?

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