Need extra help installing your Ooma Hub or Telo system? Let us know.
#54975 by JasonV
Fri May 07, 2010 5:29 pm
I just completed my Ooma set-up. Everything went smooth and was pretty straight forward. I have tested the call quality and I can hear the caller very well. However, callers tell me that I sound like I am on a cheap phone and the end of my words "muffle". My current set-up is Modem (Motorola Surfboard Extreme) > Ooma Telo > Router (D-Link DIR-655). This is the suggested configuration from Ooma. The most recent test results are:

VoIP test statistics
--------------------
Jitter: you --> server: 0.2 ms
Jitter: server --> you: 0.6 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.4 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 4.0

Speed test statistics
---------------------
Download speed: 1309640 bps
Upload speed: 4207544 bps
Download quality of service: 45 %
Upload quality of service: 85 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 158 ms
Average download pause: 22 ms
Minimum round trip time to server: 77 ms
Average round trip time to server: 78 ms
Estimated download bandwidth: 11200000bps
Route concurrency: 8.551969
Download TCP forced idle: 41 %
Maximum route speed: 6808824bps

It seems to me that the quality of service is not too great. Any suggestions on how to improve the quality of service and to send a good quality sound? Again, I can hear the phone recepient very well, but they made mention of my poorer quality. Many thanks.
#54981 by DTMF
Fri May 07, 2010 7:22 pm
You need to do whatever you can to minimize competing uses of your outbound bandwidth. Any online gaming or P2P file sharing happening on your connection while you're making these calls? Most home providers' outbound connections support 1/10 or less of the bandwidth as the incoming connection. It's important to minimize competition for that available bandwidth. I'm puzzled why yours has 4x as much upload bandwidth in that report! It is unlikely that you really have 42 Mbps of upload bandwidth.
#54987 by murphy
Sat May 08, 2010 2:11 am
As DTMF said you have a problem. Your download speed is 1.3 mbps and your upload speed is 4.2 mbps out of an estimated download bandwidth of 11.2 mbps. You are also losing packets in the download direction.

Connect to http://192.168.100.1 and look at the signal page to get the download signal level, the download SNR, and the upload power. How many splitters are between the incoming cable and the cable modem? Are they bidirectional splitters?

Connect your computer directly to the cable modem (turn it off while making the connection) and rerun the speed test.
#54988 by JasonV
Sat May 08, 2010 3:38 am
Thank you for responding. I am not downloading any games. These test results are always strange, because I can go to other test sites (I tried 3 others) and my download speed is around 18mps and upload 3-4mps. My dowload speed is always bad on this particular site. Murphy, here is my modem page you made reference to.

Downstream Bonding Channel Value
Channel ID 4 3 2 1
Frequency 687000000 Hz 693000000 Hz 699000000 Hz 705000000 Hz
Signal to Noise Ratio 38 dB 38 dB 39 dB 38 dB
Downstream Modulation QAM256 QAM256 QAM256 QAM256
Power LevelThe Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
10 dBmV 10 dBmV 9 dBmV 9 dBmV


Upstream Bonding Channel Value
Channel ID 2
Frequency 36400000 Hz
Ranging Service ID 793
Symbol Rate 5.120 Msym/sec
Power Level 35 dBmV
Upstream Modulation [3] QPSK
[3] 16QAM

Ranging Status Success


Signal Stats (Codewords) Bonding Channel Value
Channel ID 4 3 2 1
Total Unerrored Codewords 2356181623 2356181223 2356180218 2356179142
Total Correctable Codewords 2957 3640 4823 5549
Total Uncorrectable Codewords 1674 1463 1408 1378

I don't know if this will help you. Should I try to run my Ooma after the router?
#54991 by murphy
Sat May 08, 2010 6:29 am
I see you have a DOCSIS 3.0 modem.
Is it the Motorola SB6120? If it is, you are well within it's -15 to + 15 dBmV signal level range.
Your uncorrectable error rate is essentially zero (0.0001%).
Now I really want to see what measurements you get from the VOIP site with the computer connected directly to the modem.
#55013 by JasonV
Sat May 08, 2010 9:24 am
Thanks. I have really strange results. They got worse.

VOIP Test Results (Modem>Ooma>Router)

VoIP test statistics
--------------------
Jitter: you --> server: 0.1 ms
Jitter: server --> you: 0.6 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: 4.2

Speed test statistics
---------------------
Download speed: 1456216 bps
Upload speed: 4232352 bps
Download quality of service: 48 %
Upload quality of service: 84 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 144 ms
Average download pause: 20 ms
Minimum round trip time to server: 77 ms
Average round trip time to server: 78 ms
Estimated download bandwidth: 5600000bps
Route concurrency: 3.8455834
Download TCP forced idle: 0 %
Maximum route speed: 6808824bps

VOIP Test Results (Modem>Computer) / Directly to Modem

VoIP test statistics
--------------------
Jitter: you --> server: 0.3 ms
Jitter: server --> you: 0.6 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.2 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 4.0

Speed test statistics
---------------------
Download speed: 1339368 bps
Upload speed: 4117856 bps
Download quality of service: 35 %
Upload quality of service: 88 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 152 ms
Average download pause: 21 ms
Minimum round trip time to server: 79 ms
Average round trip time to server: 80 ms
Estimated download bandwidth: 9600000bps
Route concurrency: 7.1675596
Download TCP forced idle: 32 %
Maximum route speed: 6636448bps

What do you think? By the way, I have Comcast service.
#55015 by murphy
Sat May 08, 2010 9:43 am
Hmmm.
I am also on Comcast in SE PA.
Here is my run


VoIP test statistics
--------------------
Jitter: you --> server: 4.6 ms
Jitter: server --> you: 6.8 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: 3.9

Speed test statistics
---------------------
Download speed: 4699432 bps
Upload speed: 4705432 bps
Download quality of service: 72 %
Upload quality of service: 96 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 89 ms
Average download pause: 13 ms
Minimum round trip time to server: 94 ms
Average round trip time to server: 101 ms
Estimated download bandwidth: 208000000bps
Route concurrency: 44.26067
Download TCP forced idle: 98 %
Maximum route speed: 5577440bps

Estimated bandwidth of 208 mbps is impossible.
IMHO there is something wrong with that site.


Here is a link to my results from

speedtest.comcast.net

http://results.speedtest.comcast.net/re ... 736722.png

I have the 12/2 Performance plan. The inflated numbers are a result of the speed boost they provide at the beginning of a connection.
#55019 by JasonV
Sat May 08, 2010 10:17 am
You are right, there is something wrong. My download speed on the Comcast site is 13.82 and upload 4.27 based on the nearest server. I have the same Comcast package, which is 12mps with powerboost. There are times I get a download of up to 21mps, but that might not be correct. The one thing that bothers me is the large despersion in speed and the quality.

http://results.speedtest.comcast.net/re ... 739072.png

Do you think I should have a Comcast technician take a look at the issue? Or is there anything else you would suggest. There was a forum that suggest to place the Ooma behind my particular router because it manages the QOS better than Ooma. What is your opinion? Thanks.

viewtopic.php?f=2&t=5876
#55030 by murphy
Sat May 08, 2010 12:27 pm
I have mine behind my router and have no problems.
I configured the QOS in my router to give top priority to the MAC address of the Ooma box.
#55221 by tommies
Mon May 10, 2010 2:53 pm
The speed test (for bandwidth) now has ping test for quality of the connection:
You can try the new ping test site
Here is my result. BTW, this is the first time I have ping above 20ms, all the previous ping always <18ms.
Image

Who is online

Users browsing this forum: No registered users and 10 guests