BSNL’s Voice & Video Over Internet Protocol (VVOIP) technology uses the packet switching technology and makes communication possible over IP networks such as Internet. In this the Voice and Video signals are converted into data packets and sent to the destination, where the data packets are again converted back to voice and video respectively.
The main highlight of this service is that any customer can make audio and video calls at will on any landline, mobile or IP phone anywhere in the world (except India), provided both the ends have requisite video phone equipment and if video phone equipment is available at only one end, only voice call can happen. Within India, a customer can make only IP to IP calling within BSNL network.