You can use this service at any browser and OS without any restrictions.
After downloading small application Facebook video call is ready to use.
Viber is another Best App in the list of Best Video Calling Software for PC. It enable us to chat with other Viber user around the world or on any device without any cost.
Almost every free calling software have both options for video and voice.
Using Video calling software is best way to interact with others online.
Skype voice and video communication quality is best and work without any interrupt.
In Skype you can call everywhere for free through Skype to Skype calls.
So it better idea to make then free video though Facebook without wasting time on another software.
Facebook started video facility in collaboration with Skype.
Facebook video chat is another best way to do online video chat.
As we use Facebook for sharing updates and for doing text chat with our friends.
oo Voo is top most video chatting software with 30 million users. Google hangouts lets you to make free face-to-face call with 10 different people at same time.