I am trying to determine why I have, at times, such poor quality VOIP. I ran a test at http://myvoipspeed.visualware.com/index.html and determined that my problem is a high rate of jitter. Here is the data:
Jitter: you --> server: 8.0 ms
Jitter: server --> you: 3.6 ms
Here is the rest of the data:
Speed test statistics
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Download speed: 4905832 bps
Upload speed: 368960 bps
Quality of service: 97 %
Download test type: socket
Upload test type: socket
Maximum download pause: 118 ms
Average download pause: 2 ms
Minimum round trip time to server: 30 ms
Average round trip time to server: 65 ms
VoIP test statistics
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Jitter: you --> server: 8.0 ms
Jitter: server --> you: 3.6 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Number of supported VoIP lines: 6
Estimated MOS score: 3.9
What can I do to help correct the jitter?
Config: Cable Modem then VOIP Modem then Router
Best answer:
Answer by jwmarshall49
Its probably not a jitter problem. The test you reference is a snap shot in time of how your network is performing. Like most broadband connections, you are probably experiencing packet loss when you are having voice quality issues. Check to see if the phone you are using reports on packet loss, jitter and latency for each call (perhaps logging is a configuration option).
What do you think? Answer below!
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