Troubleshooting Voice Drop outs. Best Practices?

nuvio agrees:

Speed
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Download speed: 5702248 bps
Upload speed: 5279472 bps
Quality of service: 7 %
Maximum TCP delay: 212 ms
Average download pause: 3 ms
Minimum round trip time to server: 52 ms
Average round trip time to server: 54 ms

VoIP
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Jitter: you --> server: 18.1 ms
Jitter: server --> you: 32.5 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 VoIP lines supported: 41
Estimated MOS score: 3.7

Speed test statistics
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Download speed: 5702248 bps
Upload speed: 5279472 bps
Quality of service: 7 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 212 ms
Average download pause: 3 ms
Minimum round trip time to server: 52 ms
Average round trip time to server: 54 ms
Estimated download bandwidth: 16000000bps
Route concurrency: 2.8059108
Download TCP forced idle: 40 %
Maximum route speed: 10082304bps

VoIP test statistics
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Jitter: you --> server: 18.1 ms
Jitter: server --> you: 32.5 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 3.7

Streaming video statistics
--------------------------
Audio stream jitter: 62.1 ms
Video stream jitter: 62.1 ms
Audio stream packet loss: 0 %
Video stream packet loss: 0 %
Audio stream packet discards: 0 %
Video stream packet discards: 0 %

Capacity test statistics
------------------------
Download capacity: 1981600 bps
Download packets per second: 1548
Upload capacity: 948616 bps
Upload packets per second: 741
Quality of service: 97 %
Packet size: 160 Bytes

Nuvio says your upload bandwidth is 5279472 bps (5M). Is that really true? I think you posted another speed test which shows 2.6 (M). Assuming its something close to it, I think the problem is not bandwidth. If you can just give your VOIP packets higher priority, I think you will be good to go. You have some jitter in the VOIP section which might be caused by the router. It could be your line too. But given the speedtest, I would lean more towards router issues

Quote:

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Originally Posted by sr98user

Nuvio says your upload bandwidth is 5279472 bps (5M). Is that really true? I think you posted another speed test which shows 2.6 (M). Assuming its something close to it, I think the problem is not bandwidth. If you can just give your VOIP packets higher priority, I think you will be good to go. You have some jitter in the VOIP section which might be caused by the router. It could be your line too. But given the speedtest, I would lean more towards router issues

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I tend to agree that it is pointing to jitter. To the ear, it's hard to discern jitter versus loss because I presume the device discards the late packets. I did more nuvio testing in front and behind the router with my pc. In front of the router I get all green for the voip, behind I get red/yellows for qos and jitter, so it is pointing to the router. I'll look into to getting a better router. It is interesting that for the nuvio video test, it also doesn't like the jitter.

I know of Tom's hardware / Small net builder for router reviews. Are there other sites?

Thanks,

Dave

Tomato. Google Tomato Firmware. FInd a Linksys WRT54g on ebay. What I do for myself and recommend to others. Words fantastic and is cheap!!

-bird

Couldn't find a Tomato compatible router locally. Couldn't wait for the ebay shipping time with the current WAF (Wife Acceptance Factor). I acquired a Dlink DIR-655 with decent reviews and automatic QoS. So far so good. No dropouts and no "forgetting" of inbound port configuration.

For the record, Netgear 824v2 doesn't work very well for voip. It did give me several years of solid service as a standard router.