Which party has a SIP B2BUA role in the call?

Posted by: Pdfprep Category: 300-070 Tags: , ,

Refer to the exhibit.

Which party has a SIP B2BUA role in the call?
A . 172.17.4.100
B . 10.100.4.65 and 172.17.4.100
C . 10.100.4.65
D . None of the parties has a B2BUA role in the call.
E . 10.100.4.68 and 10.100.4.65

Answer: C

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