teleconference because the teleconference was made before the telephone.

A teleconference is the live exchange and mass articulation of information among several persons and machines remote from one another but are linked by a teleconference service. You can find a list of 7 free teleconference services at http://www.sitepoint.com/7-free-teleconference-services/

Teleconference providers provide teleconferencing services, which allow executives to keep in contact with clients as well as with one another. Some examples of teleconference providers include AT&T, AllConferenceServices and PowWowNow.

If looking for a cheapest solution to make a teleconference call, it is best to choose from a cheap company, for example according to All Conference Service webpage, it suggested Conference Worldwide is one of the cheapest teleconference service.