Ok. Been using Vonage since 2003. I am well adapted at how to handle call quality issues. A lot stems upon ISP. I've been using Vonage w/Insight Broadband together for the past 2 years, and have had NOT ONE issue with QOS or call quality. Now Insight has been switched over to Comcast in my area. All of a sudden this morning, HORRIBLE call quality, party on the other end sounds extremely broken & garbled, and that is how I sound to the calling party. I am almost positive it is Comcast issue.
Download speed: 6558528 bps Upload speed: 960048 bps Quality of service: 69 % Download test type: socket Upload test type: socket Maximum download pause: 69 ms Average download pause: 6 ms Minimum round trip time to server: 52 ms Average round trip time to server: 57 ms
Voip test statistics -------------------- Jitter: you --> server: 3.6 ms Jitter: server --> you: 8.7 ms Packet loss: you --> server: 0.1 % Packet loss: server --> you: 0.0 % Packet discards: 0.0 % Packets out of order: 0.0 % Number of supported Voip lines: 16 Estimated MOS score: 3.9
#2:
Download speed: 6821504 bps Upload speed: 957984 bps Quality of service: 82 % Download test type: socket Upload test type: socket Maximum download pause: 57 ms Average download pause: 5 ms Minimum round trip time to server: 46 ms Average round trip time to server: 49 ms
Voip test statistics -------------------- Jitter: you --> server: 4.5 ms Jitter: server --> you: 8.8 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: 16 Estimated MOS score: 3.9
MOS Analysis From You TO Boston MOS analysis chart Media Quality MOS 3.9 / 5.0 (Best with G.711 is 4.4)
Degradation Sources Codec 0.58 53.5% Latency 0.06 5.8% Packet Discards 0.44 40.7% Packet Loss 0.00 0.0% Codec G.711 (PCM at 64kbps, 20ms RTP payload, 80kbps IP BW) Round-Trip Latency 245 ms Packet Discards 2.9% Packet Loss 0.0% Loss Periods Min: 440 ms Avg: 440 ms Max: 440 ms Burst Loss Jitter Min: 0 ms Avg: 11 ms Max: 597 ms Signaling Quality Post-Dial Delay 78 ms Call Setup Time 78 ms Media Delay 625 ms
MOS Analysis FROM Boston To You MOS analysis chart Media Quality MOS 3.9 / 5.0 (Best with G.711 is 4.4)
Degradation Sources Codec 0.58 53.5% Latency 0.06 5.8% Packet Discards 0.44 40.7% Packet Loss 0.00 0.0% Codec G.711 (PCM at 64kbps, 20ms RTP payload, 80kbps IP BW) Round-Trip Latency 245 ms Packet Discards 2.2% Packet Loss 0.0% Loss Periods Min: 20 ms Avg: 80 ms Max: 200 ms Burst Loss Jitter Min: 4 ms Avg: 6 ms Max: 199 ms Signaling Quality Post-Pickup Delay 511 ms Call Setup Time 80 ms Media Delay 541 ms
Any clues as to whether it's my ISP, and if so, what do I explain to them what is happening?
I don't see anything terribly bad in Atyoursos' test results. It is a bit disconcerting that the testyourvoip results aren't as good as the forum test results, but I don't see any explanation for horrible voice quality.
When I lived in Houston we were swicthed from TWC to Comcast and I never experienced a problem.
Of course my experience is completely isolated to the node I was on. All one has to do is move into a bad node with the same company and you'll get lousy results. That's why I always have a tough time making a blanket statement about a particular company. For example, when I had first moved into the Houston area I lived in Katy with a friend. His particular node had a problem with packet loss, so my Vonage service was lousy. After calling TWC on his behalf, the tech that came out told me that others in neighborhood were complaining about the same problem. They never did completely fix the issue. But when I moved into Houston, I was still with the same company and on the same system, but obviously on a different node, and my service was excellent, as was my Vonage service.
Personally, I would complain to Comcast, and when the tech shows up to check your lines, show him your results. If he's (or she) smart and into his job he will work to isolate the problem and fix it for you.
Prior to me posting, I had in fact searched these forums for recent posts potentially related to my situation.
It seemed that others who were previously Insight BB customers and switched to Comcast were experiencing the same issues.
All of a sudden, later in the date yesterday, call quality was no longer an issue. I had in fact, in addition to my speed tests & posting in this forum, had also email Comcast customer support.
I believe they probably had enough contact from customers, that they resolved the issue(s).
I cannot say enough how much I appreciate everyone's response & support here.
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