Introduction - If you have any usage issues, please Google them yourself
In the traditional telephone system, a call from the establishment of systems to connect to dismantle connection with the completion of signaling. Likewise, IP telephony, how to find the called party, how to create a response, how to send data to each other s data processing capabilities, signaling systems, commonly known as the Agreement. Internationally, more King loud IP telephony protocols, including ITU-T H.323 and SIP protocol IETE, this section introduces the most widely used H.323 protocol.