Need extra help installing your Ooma Hub or Telo system? Let us know.
#26462 by kamiller42
Thu Oct 15, 2009 12:21 pm
I have the top tier RoadRunner service. My router is the TrendNet TEW-633GR. My Ooma hub is between the cable modem and router.

Here is my benchmark when not in a call...
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Here is my benchmark when in a call...
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Ouch! I don't remember this always being the case. BTW, my download speed is typically closer to 30Mbps. Scored low today. Not sure why.

What gives? I thought the CODEC sipped bandwidth.
#26479 by kamiller42
Thu Oct 15, 2009 1:56 pm
Groundhound wrote:What QoS settings in the hub do you have?

Good question. I don't know. I would think the default. How can I sign in? Remember, it's between the modem and router, not behind the router.
#26511 by Davesworld
Thu Oct 15, 2009 3:38 pm
The default iLBC codec uses about 30kbs each direction, when forcing g.711 it's around 70kbs each direction but I do not believe this is the issue. The issue I believe is that you are asking the ooma device to pass high bandwidth in both directions AND process packets as well as compressing and decompressing with codecs during a phone call. I just can't imagine a hub or telo having that much processing power but I could be underestimating them.

I can only suggest hooking it behind the router.
#26534 by kamiller42
Thu Oct 15, 2009 4:54 pm
Okay. Some additional information...

This is the old hub. The modem, hub, and router and have been power cycled a few times.

The QoS is set to 384 upstream and 0 downstream. I don't think 0 is right. And if 384 is correct, still doesn't explain the dramatic drop in upstream. Not sure if either explains the insanely high ping.

What are the recommended values?
#26553 by kamiller42
Thu Oct 15, 2009 5:51 pm
I forgot to mention my reserved bandwidth is 130Kbps. If I reading this right, then an active Ooma call should never exceed 130Kbps.

dknyinva wrote:https://www.ooma.com/support/knowledgebase/configuring-quality-service

That is interesting information, but I am still unclear how the default up and downstream values are bad.

I went ahead and changed downstream to 2048Kbps just to test and see. This is what happened.

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