A bit about my setup:
AT&T Uverse, 5.4Mb down and .98 Mb up, between 0.0 and 0.3 jitter and 0.0 packet loss (all from myspeed.visualware.com). I have forwarded my landline (not provided by Uverse) to my Ooma number.
Uverse uses a combo modem/raouter, and I have tried the Ooma in several combinations, none of which changed my results:
1. Ooma connected directly to modem/router with nothing connected to the home part (note that I also have a Home Network, Satellite Receiver and a PS3 connected to the router)
2. Ooma connected directly to modem/router with my home network connected to the home part (note that I also have a Satellite Receiver and a PS3 connected to the router)
3. Ooma connected to a switch off of my home network
4. Ooma connected to a Powerline adapter connected to my home network.
I have also changed the QOS settings in setup.ooma.com and set the upload to 0. There is no QOS setting in my modem/router.
Is there anything else I can try? If not, it is going back today
I can tell you I have Telo with U-Verse with a lot less other connections than you have and mine is a dream come true. I did not tweak a thing anywhere. U-Verse simply stuck in in the DMZ zone all by itself.
I hope you get your help. You will love Ooma.
Search around the net for uverse errors and you should be able to get an education on this.
Go to setup.ooma.com using a pc connected to Ooma. Click advanced on left, and try setting "up" to 0 and save. I think your line is fast enough for this to help most of the time. If you do large uploads, call quality might degrade some, but overall I like 0 down and 0 up with my cable connection.