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# RTP sequence number

A 16-bit integer specifying the RTP sequence number for this packet.

## Overview

The RTP server adds a random offset to this sequence number before transmitting the packet. This field allows re-transmission of packets—for example, the same packet can be assembled with the same sequence number and a different (later) packet transmission time. A text sample with a duration of 5 minutes can be retransmitted every 10 seconds, so that clients that miss the original sample transmission (perhaps they started playing the movie in the middle) will be refreshed after a maximum of 10 seconds.

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