A P2P AUDIO CONFERENCING APPLICATION USING H.323 VoIP
VoIP is a term used for a set of facilities for managing the delivery of voice information using the Internet
Protocol. This means sending voice information in digital form in discrete packets rather than using the conventional
connection oriented circuit-switched networks. With VoIP, there is no dedicated connection between the communicating
devices. In addition to IP, VoIP uses the real-time protocol (RTP) to help ensure that packets get delivered in a timely way.
IP cannot carry analog signals. VoIP works by converting the analog voice signal into a compressed digital data stream. This digital data stream is then fragmented into packets for transmission over the IP network to the destination where the packets are converted back into analog signal for reception.
H.323 is an ITU (International Telecommunications Union) recommended standard, which provides a foundation for audio, video and data communications on non-guaranteed Quality of Service networks, or precisely in Local Area Networks (LAN) and IP based networks, including the Internet. H.323 is not a single protocol. It is a recommended specification for a range of protocols, which performs all the functions necessary to establish and maintain real time audio/video/data conferencing sessions over IP data networks....
