Connection Analysis
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MVJT01: Jitter is too high and will cause poor voice quality
VoIP is real-time data in that it represents two or more parties in conversation using a telephone or mobile handset. Because all Internet data is sent in a series of separate packets, in order to deliver quality voice without lost or garbled words it is important that the packets traverse the network as a consistent flow. This is obviously because the actual sound of a single word will be spread across several packets and must arrive in a timely fashion for a coherent call to take place. To be consistent means that each and every VoIP packet should take approximately the same amount of time between the two ends of the call. Unfortunately the Internet is a contended network, meaning your data contends with data from other users. When a network becomes congested, just like cars on the highway, then the journey time for each packet will start to fluctuate by varying amounts of time. Jitter is the measure of the packet fluctuation and if the jitter value exceeds 50ms then quality issues will occur. Simply packets will arrive too late for normal voice use and packet will be discarded as a result. Need more help or have questions, please contact us. |