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QUESTION
ABC Inc. replaced its legacy circuit-switched PBX with an SIP-based VoIP system on its Ethernet LAN. When capturing and observing voice packets (i.
ABC Inc. replaced its legacy circuit-switched PBX with an SIP-based VoIP system on its Ethernet LAN. When capturing and observing voice packets (i.e., RTP packets) using Wireshark, what are the OSI layer 2, OSI layer 3, and OSI layer 4 headers of each packet? Justify, in one paragraph, why the packets' OSI layer 4 protocol, and not its alternative, is chosen.
