An engineer is investigating voice quality degradation on calls passing through a particular SIP gateway. To gather the necessary information, sample traffic captures are taken. Which information in the capture reveals the problem?
A. destination port
B. version
C. ToS bits
D. MTU
idk…
https://community.cisco.com/t5/collaboration-voice-and-video/how-to-troubleshoot-voice-quality-issues-in-a-ucm-environment/ta-p/3121613
ToS bits, C is correct one.