The call quality is so bad, no one can here me when sitting right in front of my computer.

The call quality is so bad, no one can here me when sitting right in front of my computer. I've tried all of our PCs & we have the latest technology. Ringcentral Desktop & Mobile is so heavy on the computer, that if you leave on all day, everything runs extreme slowly when we have more than adequate amounts of RAM & hard drive space. Almost every program or Ringcentral has to be ended which defeats purpose of having the phone-we are entirely virtual & solely relying on your systems to work.