Dropped calls, poor quality voice, deteriorating service
CoalMinerRetired:
No straight answer right now. But a few points to consider:
- One of the tests states 'run at least three times to determine consistent results'. If you do that and it still points to jitter we have a likely suspect.
- Can you possibly take your entire Obi + analog phone setup out of/remove from your network and move it to someone else's network/someone else's cable modem, for a few minutes of calls and testing, i.e., neighbor, friend, family? The expected results here will be to look for better call quality, and if you run the same tests on another network less jitter. I'd say use the same analog handset to eliminate any doubts that is the issue, even though things point to something else.
- Post back what you observe. Going forward, I'd suggest you get in touch with Comcast, their front line support is not always that insightful, but you say something like 'I'm trying to use a VoIP phone, call quality is making it unusable, tests show 'packet loss' or 'excessive high levels of jitter' (or whatever), can you please send someone out to analyze/investigate? Key point is keep it simple in initial reports to their support, get those words in trouble ticket and their technician knows what to look for if/when truck rolls to your place.
Shale:
Quote from: virtualy on May 04, 2013, 10:28:32 pm
So, my jitter is bad, as is consistency of service. Are these problems caused by my ISP? Modem? OBi? The magnetosphere? IOW, whats my next step?
ISP probably, but you should probably try the tests again with a computer that is wired rather than WiFi. Also consider asking a neighbor with the same service to try those tests.
If the problem was the modem, I would have expected packet.
Those tests certainly explain your poor voice quality
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