Which description of RTP timestamps or sequence numbers is true?
A . The sequence number is used to detect losses.
B . Timestamps increase by the time “carrying” by a packet.
C . Sequence numbers increase by four for each RTP packet transmitted.
D . The timestamp is used to place the incoming audio and video packets in the correct timing order (playout delay compensation).
Answer: D
Explanation:
Reference: https://www.cs.columbia.edu/~hgs/rtp/faq.html