Since 1996, cable companies have spent more than $55 billion on reworking their systems to be able to offer various two-way digital services.

These cards already exist, but do not permit two-way services like video-on-demand.

And eventually, two-way digital services might make it possible to order movies or other video from home.

Connexion says it is the only one that will provide two-way broadband service.

Cable companies can transmit huge numbers of television channels, but have little ability to offer two-way interactive services.

Cable companies would rather have consumers order two-way services like video on demand because they generate additional income, he said.

There were too many of us providing mobile two-way service to the consumer.

That poses a problem for telephones, which inherently provide a two-way service.

These upgrades, together with new rolling stock, should allow for two-way service during peak hours at speeds from 20 to 80 miles per hour.

It is therefore important to limit the definition to two-way services.