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.
#29127 by Cheerymonkey
Sat Oct 24, 2009 11:17 am
Do any of you experts see why my calls are so bad? Any suggestions? I'm using 1.5 speed DSL via Qwest modem. Thanks, I hope you can help, I haven't had one clear phone call yet, the voices speed up, fuzz out, time delays, etc. I really want Ooma to work! :?



VoIP test statistics
--------------------
Jitter: you --> server: 1.8 ms
Jitter: server --> you: 264.6 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: 3.6

Speed test statistics
---------------------
Download speed: 82648 bps
Upload speed: 552040 bps
Download quality of service: 99 %
Upload quality of service: 99 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 376 ms
Average download pause: 143 ms
Minimum round trip time to server: 260 ms
Average round trip time to server: 266 ms
Estimated download bandwidth: 82648bps
Route concurrency: 1.0
Download TCP forced idle: 0 %
Maximum route speed: 2016456bps
#29130 by Groundhound
Sat Oct 24, 2009 11:36 am
Cheerymonkey wrote:Do any of you experts see why my calls are so bad? Any suggestions? I'm using 1.5 speed DSL via Qwest modem. Thanks, I hope you can help, I haven't had one clear phone call yet, the voices speed up, fuzz out, time delays, etc. I really want Ooma to work! :?



VoIP test statistics
--------------------
Jitter: you --> server: 1.8 ms
Jitter: server --> you: 264.6 ms This is pretty bad Jitter.
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: 3.6

Speed test statistics
---------------------
Download speed: 82648 bps
Upload speed: 552040 bps
Download quality of service: 99 %
Upload quality of service: 99 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 376 ms This is also a bad stat
Average download pause: 143 ms
Minimum round trip time to server: 260 ms
Average round trip time to server: 266 ms
Estimated download bandwidth: 82648bps
Route concurrency: 1.0
Download TCP forced idle: 0 %
Maximum route speed: 2016456bps

You've got some bad figures in the stats, as noted above. How is Ooma connected relative to the rest of your network: modem, router, computer? How is your phone connected to your Ooma device?
#29131 by Cheerymonkey
Sat Oct 24, 2009 11:44 am
I have a splitter coming from the phone jack-one to DSL modem, one to Ooma Hub. Computer plugs into Hub. No router. I just upped my download speed per Qos instructions, I'll see if that helped.
#29133 by Cheerymonkey
Sat Oct 24, 2009 11:49 am
Hmm, no impact on jitter but delay number got smaller.

VoIP test statistics
--------------------
Jitter: you --> server: 1.4 ms
Jitter: server --> you: 264.3 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: 3.6

Speed test statistics
---------------------
Download speed: 81728 bps
Upload speed: 550840 bps
Download quality of service: 97 %
Upload quality of service: 98 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 271 ms
Average download pause: 142 ms
Minimum round trip time to server: 254 ms
Average round trip time to server: 261 ms
Estimated download bandwidth: 81728bps
Route concurrency: 1.0
Download TCP forced idle: 0 %
Maximum route speed: 2064088bps
#29134 by allo
Sat Oct 24, 2009 11:50 am
Download speed: 82648 bps
Upload speed: 552040 bps


Something doesn't look right here: upload speed 6 1/2 times faster than download speed?
Also the jitter and Ping way too high !

I would get cable if it is available.... Too many horror stories with DSL !
#29136 by Cheerymonkey
Sat Oct 24, 2009 12:21 pm
I'm stuck to Qwest like a bad marriage, until my contract is up :(

But, I just re-looked at my setup...removed the splitter from the wall, and plugged the Ooma into the phone jack on the back of my modem. It fixed quite a bit...just QoS still off. Can one of you guys relook at the new numbers since I made this change?


VoIP test statistics
--------------------
Jitter: you --> server: 1.4 ms
Jitter: server --> you: 4.7 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: 808736 bps
Upload speed: 552016 bps
Download quality of service: 16 %
Upload quality of service: 99 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 940 ms
Average download pause: 15 ms
Minimum round trip time to server: 111 ms
Average round trip time to server: 114 ms
Estimated download bandwidth: 960000bps
Route concurrency: 1.1870376
Download TCP forced idle: 0 %
Maximum route speed: 4723240bps
#29145 by tommies
Sat Oct 24, 2009 1:09 pm
allo wrote:Something doesn't look right here: upload speed 6 1/2 times faster than download speed?
Also the jitter and Ping way too high !

I would get cable if it is available.... Too many horror stories with DSL !

I would say it depends on location. I have ATT/Bellsouth DSL for about 2yrs now: very solid service, can't say the same with Comcast.
#29146 by tommies
Sat Oct 24, 2009 1:13 pm
Cheerymonkey wrote:I'm stuck to Qwest like a bad marriage, until my contract is up :(

But, I just re-looked at my setup...removed the splitter from the wall, and plugged the Ooma into the phone jack on the back of my modem. It fixed quite a bit...just QoS still off. Can one of you guys relook at the new numbers since I made this change?


VoIP test statistics
--------------------
Jitter: you --> server: 1.4 ms
Jitter: server --> you: 4.7 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: 808736 bps
Upload speed: 552016 bps
Download quality of service: 16 % ---> this is bad
Upload quality of service: 99 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 940 ms ---> no good either
Average download pause: 15 ms
Minimum round trip time to server: 111 ms
Average round trip time to server: 114 ms
Estimated download bandwidth: 960000bps
Route concurrency: 1.1870376
Download TCP forced idle: 0 %
Maximum route speed: 4723240bps

One question: do you happen to use the scout, or do you not?

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