My ooma service has been really spotty today. I'm in S. FL and use Comcast as my provider. I have either not been able to make calls or the calls get cut off during the call session. The internet is fine so I am not sure what might be wrong. Is the service having problems?
Internet may be "fine" but there may be latency issues?
Check here: http://www.whichvoip.com/voip/speed_test/ppspeed.html
and post your results