Conferencing services allow multiple users to communicate with each other like they are just in the same room in real time wherever they might be.

For audio conferencing to work all you need is a phone or a computer with an internet connection. The concept is participants use speaker phones and several dial up numbers. Numbers can be either local or toll free long distance numbers. Users can do it on their own and run long distance charges on their own or they can also choose to sign up for one of the many audio conferencing services. These services provide different package types to handle dial up, long distance and logins. Audio conferencing services are made better these days with specially designed phone to deliver high sound quality than the normal phone. Another feature is translation services, you can check on the provider if this is included in the package they offered you. But the best innovation done recently is now audio conferencing also allow slide presentations, exchange of files and instant messaging among participants.

Web conferencing features more options than audio conferencing services. These services cater a broader spectrum of communication. Through web conferencing, participants can listen, watch, as well as communicate with presenters in real time. All that is needed for this to work is a computer and the participants must log into the service that connect to other participants. An example of a type of web conference is webinar which is an online version of seminar. Electronic Meeting System is also used in web conferencing. This system provide online facilitation tools such as brainstorming and categorization, a range of voting methods or structured discussions, typically with optional anonymity. Web conferencing typically offers the following: slideshow presentations, live or streaming video, VoIP (Real time audio communication through the computer via use of headphones and speakers), web tours, meeting recording, text chat, whiteboard with annotation, screen sharing/desktop sharing/application sharing, polls and surveys.

Video conferencing is closed to web conferencing service. It allows participants to both see and hear each other with the integration of video and sound technology. Typically it is done through live video and audio feed in both directions. Video conferencing also allow participants to display slideshows and interactive whiteboards just like in web conferencing. Depending on your equipment and internet connection, (speed and bandwidth) you can have a clean, clear, crisp video and high quality sound during a video conference.