The 4 Horsemen of the Hosted PBX Apocalypse Part 3: Jitter

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…

four horseman jitter

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