This forum includes tips for maintaining the best audio quality possible with the Ooma System. If your Ooma system is having issues with dropped calls, static audio or echo, look here for assistance.
#14693 by nrs
Tue Aug 04, 2009 6:57 am
I am still having the call issues. I was thinking there will be some thing that can sit between the modem or router or ooma to improve the calls. When other VOIP providers can give good call quality service they must be using some tech item.

Would it be possible to install Linksys SPA2102 Phone Adapter with Router OR LINKSYS SPA1001 Phone Adapter OR "any other" type adapter to Ooma?

I am willing to try it out. Any thoughts appreciated.

Thanks
Nrs
#14695 by nrs
Tue Aug 04, 2009 7:36 am
Right now cablemodem>ooma>router(airport extreme n). I have tried modem>router>ooma. No change in call quality eitherway.

I did reset the ooma already 2 times. Earlier I had put in openDNS numbers when the problem started I removed it , but still the same.

I am experiencing some thing new for the past 4 days. Ooma tab light stays blue, internet is ok, but all the calls go to voice mail no red light on any functions. This happens every 2 to 3 hours. I have to keep looking whether the phone is woriking or not. When my hand set syas "check tel line" it means calls are going to voice mail. All I am doing is unplug ooma wait for 2 to 3 minutes and plug back, every thing will be normal. I am repeating this for the last 4 days. But how long I can do this. I have connected panasonic 6.0 phone system with 4 hand sets.

Charter communications is my ISP.(hard to get some one to speak and convince).

Test results vary a lot. I have given the bad one. some times the results looks too good but the calls are bad. Anyway here is the least one:

VoIP test statistics
--------------------
Jitter: you --> server: 2.2 ms
Jitter: server --> you: 1283.3 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 44.2 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 2.9

Speed test statistics
---------------------
Download speed: 4559968 bps
Upload speed: 548056 bps
Download quality of service: 84 %
Upload quality of service: 97 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 90 ms
Average download pause: 10 ms
Minimum round trip time to server: 78 ms
Average round trip time to server: 80 ms
Estimated download bandwidth: 4559968bps
Route concurrency: --
Download TCP forced idle: --
Maximum route speed: 6721536bps

I have to come up with some thing to eliminate the problem once and for all.

Thanks
Nrs
#14696 by nrs
Tue Aug 04, 2009 7:39 am
Just now I did another test

VoIP test statistics
--------------------
Jitter: you --> server: 2.3 ms
Jitter: server --> you: 552.1 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 19.4 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 3.0

Speed test statistics
---------------------
Download speed: 4883936 bps
Upload speed: 336320 bps
Download quality of service: 95 %
Upload quality of service: 1 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 20 ms
Average download pause: 9 ms
Minimum round trip time to server: 77 ms
Average round trip time to server: 79 ms
Estimated download bandwidth: 4883936bps
Route concurrency: --
Download TCP forced idle: --
Maximum route speed: 6808824bps
#14697 by niknak
Tue Aug 04, 2009 7:54 am
Both tests show your packet loss is very high
Also second test shows 1% upload QOS

Try removing the ooma from your network and reboot your router
Then run the speed tests again to isolate the problem

It may very well be a network / ISP issue
#14699 by Groundhound
Tue Aug 04, 2009 8:06 am
Your packet loss numbers are pretty bad. While that alone may not be the only problem, it's likely that fixing that problem will also improve your overall connection quality. Most tier 1 support script readers at cable companies are trained to convince you that the problem is with your equipment, so to take out of the equation as much as possible before requesting help from Charter, temporarily connect your PC directly to your modem (no router or ooma hub) and rerun the tests (you should have a firewall running on your PC for this).

Assuming the problem still exists, you can now talk to Charter about the packet loss issue – I would not mention your phone or VoIP per se as they will immediately latch on to that as the cause of the problem. Once you have reached your frustration limit in dealing with tier 1 support without a fix – and can honestly say you tried – you should go to http://www.dslreports.com/forum/charterdirect and request help from a more advanced Charter agent.
#14702 by nrs
Tue Aug 04, 2009 8:24 am
Here is the result without Ooma attached and it is on mac no anti virus running on this and all the other windows computers are shut down.

I will be calling once again charter late this afternoon for help.

VoIP test statistics
--------------------
Jitter: you --> server: 2.0 ms
Jitter: server --> you: 0.9 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: 4.1

Speed test statistics
---------------------
Download speed: 5205648 bps
Upload speed: 546040 bps
Download quality of service: 95 %
Upload quality of service: 98 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 16 ms
Average download pause: 2 ms
Minimum round trip time to server: 77 ms
Average round trip time to server: 78 ms
Estimated download bandwidth: 5360000bps
Route concurrency: 1.0296509
Download TCP forced idle: 0 %
Maximum route speed: 6808824bps


Thanks and let me know what you all think about these numbers..

Nrs
#14706 by nrs
Tue Aug 04, 2009 10:07 am
Groundhound

Thanks for your reply. As I said these numbers fluctuate a lot. It never remains the same. When ever I make a call or receive a call, during the call the other side they cannot hear full nor me hear full if I talk in between. It is like I have to wait for other side to stop and then I have to talk.

FYI my 2 neighbors one is with vonage and other one with ISP provided telephone. They do not have to do any of these tests. Their call quality is very clear and there is no time lag during calls like I have. They are also with the same ISP cable service like me.

So coming back to my original question, I am sure there is some kind of adapter or something can help clear up this issue. Ooma is a great product but this qos is the issue here. I hope there is way to make this work like regular telephone without anymore changing settings.
#14707 by Groundhound
Tue Aug 04, 2009 10:24 am
I know of no adapter that can improve a bad Internet connection. If your connection is inconsistent, you're likely to need help from your ISP regardless of who your VoIP provider is.

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