Surely there must be others who could dispense knowledge and create a comfortable environment that allowed subscribers to become collaborators.

Speed Calling allows subscribers to program shortcuts for telephone numbers to dial them quickly with just one or two digits.

Ircam has also created the Forum, allowing subscribers worldwide to use its latest software.

Green later started a monthly subscription service that allowed subscribers to have full access to all the videos on his website.

It allowed subscribers to eavesdrop on live stage performances and hear news reports by means of a network of telephone lines.

"It means that no country can prevent us from allowing subscribers to call or be called, no matter where they are in the world," he said.

Some on-line services allow subscribers to list items for sale on electronic bulletin boards.

The software allowed subscribers to communicate with each other through an e-mail like system.

It allowed subscribers to forward calls to their 700 number to any domestic phone number.

The codes allowed subscribers to call other exchanges directly and without the assistance of an operator.