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Is there any 'negotiation' in negotiating media in a SIP call?

This week we'll look at how caller and callee 'negotiate' or decide which codecs to use for exchanging media streams - audio and perhaps video - and will ask Is there actually any negotiation?

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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Is there any 'negotiation' in negotiating media in a SIP call?

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