From TeleDynamic Communications:
In this multiple part series, we’re exploring the four evils that are the curse of high quality hosted PBX: Bandwidth, jitter, packet loss and latency. Today’s subject is jitter.
What is Jitter?Jitter is a little bit hard to explain. Remember when we talked about how latency is the measure of packet delays over a VoIP network. Jitter is just the variation in the time between packets arriving. In other words, it’s the variation in latency. Each IP packet comes with a sequence number and time stamp in its header. This is how the VoIP equipment knows in what order they need to be re-assembled and when they were produced. A connection is experiencing jitter if many of packets come in at varying differences between packet time stamps. More…