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.
#16839 by skowbuzz
Sat Aug 22, 2009 9:40 am
with time warner as i have 120k up and 768 down.. I have both Qos set to "0" and sometime i can hear other caller garbled(only while surfing web) but ok on their end. I ahve modem-ooma-wireless router. Just want to know if spending $15 more per month for the next higher package wich is i think 360 up
#16849 by skowbuzz
Sat Aug 22, 2009 10:13 am
VoIP test statistics
--------------------
Jitter: you --> server: 1.6 ms
Jitter: server --> you: 3.6 ms
Packet loss: you --> server: 0.2 %
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: 704264 bps
Upload speed: 65360 bps
Download quality of service: 88 %
Upload quality of service: 3 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 297 ms
Average download pause: 47 ms
Minimum round trip time to server: 106 ms
Average round trip time to server: 114 ms
Estimated download bandwidth: 704264bps
Route concurrency: 1.0
Download TCP forced idle: 0 %
Maximum route speed: 4946032bps


How does this look?
#16853 by WayneDsr
Sat Aug 22, 2009 10:25 am
I'll let others chime in because I do not use cable, but for starters, the upload quality service is horrible.

Wayne
#16857 by dtalwar
Sat Aug 22, 2009 10:36 am
Those results actually look pretty bad ... you should try the test a few more times at different times during the day. If you get bad results consistently, IMO you should upgrade.
#16862 by dtalwar
Sat Aug 22, 2009 10:48 am
Upload QoS, Maximum TCP Delay. Even the upload speed seems to be half of what you should be getting. I assume you weren't on the phone (using Ooma) when you ran the test, correct?
#16878 by niknak
Sat Aug 22, 2009 11:23 am
any tcp delay over 100ms and your call quality begins degrading
you said you hear the other party garbled...that is in the download direction

ooma and voip in general does not need more than 50kbs in either direction as wayne said

it's not your speed but rather the quality of your network that affects your calls. as was stated try testing at various times of the day to develop a pattern - cable ISPs are sensitive to overload when many others in a neighborhood compete for bandwidth
#16942 by skowbuzz
Sun Aug 23, 2009 5:42 am
ok i just upgraded to 384k up and i think 2mb down. Here is my new chart consistently with QOS set to "0" in down and up and using the 130 default for calls. How can i improve tcp delay?

VoIP test statistics
--------------------
Jitter: you --> server: 0.8 ms
Jitter: server --> you: 3.6 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: 4.0

Speed test statistics
---------------------
Download speed: 1857400 bps
Upload speed: 334232 bps
Download quality of service: 88 %
Upload quality of service: 91 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 257 ms
Average download pause: 16 ms
Minimum round trip time to server: 104 ms
Average round trip time to server: 106 ms
Estimated download bandwidth: 1857400bps
Route concurrency: 1.0
Download TCP forced idle: 0 %
Maximum route speed: 5041152bps

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