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.
#81308 by moomoo71
Fri May 13, 2011 7:21 am
Hi,

Set up my Telo a few weeks ago. I have AT&T DSL. It's a 1.5M/256K service. I normally test out at 2M/230K. It is a PPPoE connection that does not require a modem (IFITL). Setup is Telo>Router>Wireless>Computer.

From day one, when I front-end my network with the Telo, my download speeds degrade severely to around 600K whether I access speedtest.net from my router or by connecting my laptop directly to the Telo. Upload speeds are unaffected. Nothing changes when I use built in MAC address. When I spooke to several people at Ooma, all they could conclude was that I should put the Telo behind my router. This makes no sense to me. They keep saying the Telo does nothing with download speed but obviously something is wrong. They do not seem to think it is an issue, however, since I can just move the Telo to behind my router. It still doesn't answer my concern though. I even replaced the Telo and the same thing happened.

Plus, I really want the Telo to front-end my network because my bw is so low that I think the CoS will be needed and lately there's been a lot of robot voice on the incoming. This also seems weird because I would think if it were an upload speed issue, the upstream party would be noticing an issue. However, it's not. We are the ones noticing all the defects. I do notice it happens when the person on the other end puts several sentences in a row together.

Does anyone have any idea what could be going on here? Are there known IFITL issues?

Thanks
#81309 by thunderbird
Fri May 13, 2011 7:44 am
moomoo71:
Go into your Ooma device's Ooma Setup pages by typing http://172.27.35.1 in your computer's browser window. The Ooma Setup pages open. Click on Advanced. Under advanced set Quality of Service Upstream and Downstream settings to about 80% of the measured Upload and Download speeds as measured by http://www.speedtest.net/ Note: 80% is just a starting point. You may have to adjust these setting slightly up or down to accommodate Ooma and your LAN's other devices. (You may have to use the full 230K in the upstream setting).
#81506 by moomoo71
Mon May 16, 2011 9:02 am
I have tried everything I've read in these forums to no avail. I am a little chapped that the box states 256K requirement, yet everyone in supports tells me I really need 384. This is not written anywhere. Just going to disconnect and get a landline for now. I can't go more than half a day without the wife complaining about robot voice.

Seems like a lot of users are saying their ccall quality went down all of a sudden recently. Could a large influx of new customers be causing your systems to flake out?
#81509 by thunderbird
Mon May 16, 2011 10:52 am
moomoo71 wrote:I have tried everything I've read in these forums to no avail. I am a little chapped that the box states 256K requirement, yet everyone in supports tells me I really need 384. This is not written anywhere. Just going to disconnect and get a landline for now.

The information that I have from Ooma is that Ooma suggests that you have a minimum of 385 kbs download and 265 kbs upload.

Something else to try if you can find the time. These ideas might not work for you, but it might be worth a try and it's just time.

When I was in China not to long ago, I found that the DSL ISP connections varied greatly. So this is what I did to find a best connection for my Ooma Telo:

Run http://www.speedtest.net/. After running look at a box at the lower left side that says "Rate Your IPS". In that box it will give your ISP name and the current IP address number that you are connected to.
Write down the ISP provider number for later use.

Than run http://speedtest.phonepower.com/ and see what your readings are.
Download and Upload Consistency of Service should be around 80% or higher.
Maximum TCP Delay should be 100 or less.
Jitter should be less than 5ms, two places.
Packet loss should be Zero, three places.
Estimated MOS Score should be around 4.

If I wasn't every close, (I did except less than the values above) I'd reboot the Ooma Telo and make sure that the ISP address number would change by running http://www.speedtest.net/ again. After running, look at a box at the lower left side that says "Rate Your IPS". Make sure the ISP IP address number changed.

Than run http://speedtest.phonepower.com/ and see what your reading are, again.

Sometimes I had to do these steps up to twenty times to get a better ISP connection. Once I got a better ISP connection, I found that the Ooma Telo functioned very well.


Another thing you might try:
Access your Ooma Setup pages and set your Quality of service Upstream Internet Speed and Downstream Internet speed, each to 5000 (or just a number that's higher than your Upload and download speeds). Than connect the Ooma Telo behind your Router, reboot everything and test.

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