When someone calls me I often see the phone light up and see on my TV that there is a call but the phone doesn't ring. It can happen two or three times in a row and when I finally speak to the person trying to call me, they tell me that all they hear is a fax sound. When it happens and I do try to answer the phone even though it didn't ring all I get is a dial tone. Spoke to Comcast a long time ago about this and they said it is a problem with my phone. They even sent someone out to check the router modem. Even though the phone I had was relatively new I upgraded to a brand new one but the problem still exists. If anything it's getting worse. I would appreciate some informedadvice on this.