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#2400 by gaurirahul
Thu Jan 29, 2009 9:51 am
yes, i have optimum cable service. i do have a router and the ooma hub is connected in front of the router......should i connect the router directly from the cable modem and then connect the router to the ooma hub? i think i tried that and didn't get a connection when i dialed out....
#2403 by Mojo
Thu Jan 29, 2009 10:29 am
When you're on a call, ooma's QoS will activate and will throttle your Internet upstream speed to 384 Kbps (by default). Out of that chunk, ooma will reserve about 100 Kbps for voice and control traffic. Your downstream speed shouldn't really be affected, since QoS is disabled by default in the downstream direction. This article has some additional details on adjusting the QoS upstream bandwidth values to mitigate this effect on your upstream traffic:

QoS Article

To test if QoS is really the cause of the slowdowns, I might try disabling it first (set it to "0") and then pick up the phone and try some Internet speed tests.
#2716 by johnnyrod
Sun Feb 08, 2009 9:06 pm
I had the same problem, but found a really simple solution. I had the modem, router, and ooma all too close together. When I space them out on different shelves of a bookcase my wireless speed went back up to normal. Must be all the EM waves from the OOMA messing up the wireless router signal.

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