For the first time in my life, except for that brief flirtation with ISDN in the late '90s, I'm about to be without an analog telephone in the house. From next week, mine will be part of a growing number of Japanese homes whose telephone service comes across a broadband Internet connection.

I hadn't planned to cut the cord so soon, but a broadband salesman turned up at my door Sunday pushing the service. It turns out that Nippon Telegraph and Telephone Corp. had just put a 1Gbps fiber-optic connection into the building, and fiber-to-the-home broadband is now available. For ¥4,200 ($36) per month, I can get a 100Mbps Internet line into my apartment and, if I don't care about losing my phone number, add telephone service for no charge.

As a result, my total monthly bill will be less than I pay now for 8Mbps ADSL service and the telephone. On top of that, my phone calls will be cheaper.

I felt sorry for the salesman. Temperatures were in the 30s (Celsius), and the poor guy was wearing a suit going door-to-door pushing a concept that I expect most of my neighbors didn't understand. So I was leaning toward switching to fiber. I'd been meaning to for a while, but when I found out I'd save money, I was sold on the idea.

I already have a couple of friends with IP telephone connections. It's easy to know because IP phones use the "050" area code. But I was surprised to find just how many people in this country of 127 million people also have that type of connection. The Ministry of Information and Communications reported recently that there were 10 million IP phone connections in Japan at the end of March. An additional 1.4 million have a conventional telephone connection over a fiber-optic broadband connection.

That's pretty impressive, as is Japan's growing fiber-to-the-home market. Of the 23.3 million homes that had broadband connections at the end of March, 5.5 million had home-fiber connections. That's just under a quarter of all domestic broadband links, and the number is growing fast.

All of this cheap bandwidth is not without it's problems for the companies providing it. The country's Internet backbone is starting to feel the strain of all these broadband connections. Peak traffic on the major domestic Internet exchanges was hitting 158Gbps at the end of last year, according to the Ministry of Information and Communications. That's about a third higher than the end of 2004 and about double 2003. After all, what are people doing with all this speed but downloading movies, watching online TV and engaging in other data-intensive activities?

The IDG News Service is a Network World affiliate.