Comcast, the nation's largest cable company, on Monday began selling its version of Internet phone service in three markets, kicking off one of the most significant challenges traditional local phone ...

Cable TV giant Comcast Corp. said Monday that it would offer telephone service to 15 million households nationwide this year, giving a big boost to a technology that challenges the core business of ...

In a major turnaround, top U.S. cable company Comcast said Wednesday that it will rely more on VoIP, the upstart technology for placing phone calls over the Net. The move could increase the cable ...

In a move that was widely expected, Comcast Corp. has announced it would market its Digital Voice VoIP service to 15 million homes in 20 of its markets by the end of this year, and expand the service ...

I am trying to get out of paying the stupid modem rental fee to Comcast. To do that, I bought my own modem. Unfortunately, the modem only has an ethernet port because I forgot I needed to hook up my ...

Does Comcast give its own Internet phone service special treatment compared to VoIP competitors who use the ISP's network? That's basically the question that the Federal Communications Commission ...

In just over three years, Comcast has grown to become the third-largest residential phone service provider in the U.S., it said on Wednesday. Comcast now has 6.47 million subscribers to its VoIP ...