Sometimes my calls go fine. Other times, after talking for 10-15 minutes, I get disconnected suddenly and I hear the Ooma dialtone. Last time, I noticed that the Ooma device started blinking red a few seconds before I got disconnected. The first time it happened, I also saw that the Ooma device was blinking red. I don't know if it started blinking before or after I got disconnected that time, though. I took someone's advice and did a VoIP quality test, and here are the results:
VoIP test statistics
Jitter: you --> server: 1.2 ms
Jitter: server --> you: 1.7 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: 4.1
Speed test statistics
Download speed: 650848 bps
Upload speed: 116864 bps
Download quality of service: 83 %
Upload quality of service: 98 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 149 ms
Average download pause: 8 ms
Minimum round trip time to server: 88 ms
Average round trip time to server: 93 ms
Estimated download bandwidth: 680000bps
Route concurrency: 1.0447907
Download TCP forced idle: 0 %
Maximum route speed: 5957720bps
My ISP is Time Warner Cable.
650K down and 116K up seem way too slow for a cable connection.
Telo with 2 Handsets, a Linx, and a Safety Phone
Telo2 with 2 Handsets and a Linx
Were the minimum bandwidth requirements in that post accurate?
According to http://www.whichvoip.com/voip/speed_test/ppspeed.html, my voip's QOS is mostly Green /94~99% (3 out of 5) /or "yellow" / 60% (2 out of 5)
In any case, Ooma blamed it on the AT&T modem. After calling AT&T, and got transferred to 5 different people (dropped call on a landline, no less), AT&T has agreed to shipped a new modem (per Ooma's suggestion as a fix to lower the jitter to below 5 ms).
I was just wondering: did I just spend a whopping 90 minutes trying fix Ooma's BS? Or is there really an issue with DSL's jitter?
I spoke with Ooma, and they said my internet connection is too slow. I plan on upgrading with my internet service provider.
A weird thing is that calls usually drop right around 15 minutes. Does anyone have any ideas why they'd drop at that time, and not before or after?
Can someone from OOMA please respond? Is anyone else having this consistent behavior?
Do the following VoIP Quality Test, go to the "advanced" tab to see the result:
Jitter should be less than 5 ms.
Packet loss should be 0.
Download and upload QOS should be at least 70%.
Maximum TCP delay should be under 100 ms.
If cable modem, connect to the status page of your cable modem and check a few things:
The downstream signal power should be between -10 and +10 dBmV.
The Signal to Noise Ratio (SNR) should be 35 or more.
The upstream power level should be less than 55 dBmV.
Use Built in Modem Port MAC Address instead of Automatic: