I've recently signed up for a phone.com account. I am unable to make calls on the account due to no sound. My voice is heard on the other end so the microphone is apparently working. However, I am unable to hear anything from the other end. I've tried with headphones as well, still no luck. Has anyone had this problem? Does anyone have thoughts on how to repair this? Thanks Oh - I've tried going through both mozilla and safari and I'm using OSx Snow Leopard.