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#13444 by RRA
Sun Jul 19, 2009 12:27 pm

I have been testing ooma for last 2-3 days, and I have noticed that, whenever I am on call the browsing speed goes down considerably.

I have 11 Mbps download and 2.6 Mbps upload as per and If I try same test while call is on the speed reduce to merely few hundred Kbps for both download and upload.

My situation is that I have to do support work, talking while working.

attached are my ooma settings, my configuration is (modem -> ooma -> Dlink router). DHCP is enabled.

ooma.JPG (57.65 KiB) Viewed 3343 times

Here are the results from

VoIP test statistics
Jitter: you --> server: 1.5 ms
Jitter: server --> you: 2.3 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.8 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 3.8

Speed test statistics
Download speed: 4461784 bps
Upload speed: 2237552 bps
Download quality of service: 73 %
Upload quality of service: 98 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 107 ms
Average download pause: 8 ms
Minimum round trip time to server: 111 ms
Average round trip time to server: 113 ms
Estimated download bandwidth: 33600000bps
Route concurrency: 7.53062
Download TCP forced idle: 86 %
Maximum route speed: 4723240bps

Any suggestion?
#13445 by Aveamantium
Sun Jul 19, 2009 12:51 pm
In the download internet speed enter about 10,000kbps and in the upload enter about 2,000kbps. I usually enter around 80% but since your download is so high it seems a little excessive.

When a call is active the ooma hub will assume that these are your upload and download speeds, set aside 130 kbps for the call, leaving 9,870kbps down and 1,870kbps up for your LAN. However, as soon as the call is ended the Qos is shut off and you'll get back your full bandwidth.
#13446 by but2002
Sun Jul 19, 2009 1:03 pm
My download speed is 6016 kbps
My Upload speed is 768 kbps

What do you recommend that I put in my QOS to keep my calls clear without killing my bandwidth?
#13449 by WayneDsr
Sun Jul 19, 2009 1:27 pm
I would set download speed to 0 to disable, you have plenty. Upload speed might be ok around 130 as Aveamantium said.

#13450 by southsound
Sun Jul 19, 2009 1:30 pm
but2002 wrote:My download speed is 6016 kbps
My Upload speed is 768 kbps

What do you recommend that I put in my QOS to keep my calls clear without killing my bandwidth?

I have Qwest DSL with 1.29mbs download and 755 kbps upload (measured). I have my QoS on the ooma set at 768 down and 384 up. Browsing is excellent and call quality is stellar. I have my ooma between my DSL modem and a Netgear FS108 switch. Simple network so no router needed. The Actiontec modem has a builtin WiFi for my iPod Touch.
#13458 by atici
Sun Jul 19, 2009 3:36 pm
The only real solution is to connect ooma behind the router, place it on DMZ and prioritize its packets. That's what I did and it works flawlessly. No more reduced bandwidth.
#13459 by WayneDsr
Sun Jul 19, 2009 3:46 pm
Yeah, I have to agree with atici on that. ooma behind the router works like a charm for me. I have zero issues and great quality.
#13464 by RRA
Sun Jul 19, 2009 4:31 pm
I am sorry atici and waynedsr, but I just want to clarify my understanding, When you say connect ooma behine router, you mean (modem -> router -> ooma) or (modem -> ooma -> router).

Based on picture attached on my original post can you please tell me which ip ( is my router ip) to put in DMZ?

#13467 by WayneDsr
Sun Jul 19, 2009 5:03 pm
modem-->router-->ooma just as you would connect a pc to your router.

You would need nothing in the DMZ, unless I'm missing something from your original post.

If your router supports QOS (Quality of Service) or port or mac address priority that would help you maintain a good quality connection during heavy network traffic.

#13470 by RRA
Sun Jul 19, 2009 5:30 pm
Wayne , in this setup (model->router-> ooma) should I specify upstream and downstream internet spped on ooma setup page? if yes , what would you recommend (should it be same, as suggested by Aveamantium)

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