Any meeting of 3 or more people in different locations can be handled inexpensively with a teleconferencing system. These can include audio only, or both audio and video conferences... for example to show someone's computer screen or "talking points" during the conference. Cheap teleconferences may have a single presenter, or may involve group discussions, as needed.

There are many carrier technologies available, even for low-cost teleconferencing. These include ordinary phone lines, voice over ip technologies, and of course the Internet. Your requirements will dictate the selection you make, and there are cheap teleconferencing providers in all these different areas.

You may need ongoing conferencing services, or you have an occasional requirement for a teleconference. It really doesn't matter - there are excellent providers of cheap teleconferencing regardless.

Between the different technologies, such as web video, dedicated conferencing equipment, and audio teleconferencing, there are a plethora of companies providing these services. Cheap teleconferencing companies are available, but you must understand the differences in features and reliability, so be sure to consult a good resource like that below before you begin.