Video conferencing utilises microphones, cameras and other such equipment to allow users in different locations to hold face-to-face meetings. Typical uses for video conferencing include holding routine meetings, interviewing job candidates or training sessions. It is convenient for businesses users in different locations or in other countries because it saves time and travel expenses. The main advantages over teleconferencing is the ability for participants see each other, share content across all the displays in all locations and transfer files easily. As with most technologies there are many ways in which video conferencing systems can be built and used. These can be anything from the camera and microphone on a smartphone, to a dedicated room system with integrated ceiling microphones and cameras. Paired with the right software service provider, calls can be taken globally with many participants collaborating in one video call.