I was just hired for a start up company and we are trying to figure out how we can improve the audio quality of the calls. My boss is in the US and I am based in the Philippines. We have tried Skype, Xlite and Nextiva. My boss still feels the audio quality is not good. Need help on what the best way to set this up or probably suggest a good headset cause it might be my headset. I'm using Logitech H151. Or if I need to upgrade my internet speed from 3mbps to 5 mbps. Please help. Thanks!