To create a voice conversation in a personal computer and a packet data network the packet telephony is used. As variety of applications being tried out on the Internet the enlarged use is substantial increased. Packet telephony is extremely talented application. A packet telephony machine contain a network processor for incorporate the networking and DSP functions. Packet telephony appliances tool an event-based device for intra-appliance communication.
The advance power of computing and compression technology has permitted people to generate and use packet phones. Packet telephony appliance runs a real-time operating system. Packet telephony machine utilize a single address space operating system kernel. Packet telephony implements a copy diminution method by using a plurality of IObufs for storing and passing data. When compare to the other consumer devices Packet telephony is low in cost. It has a wide range of extensibility and also we can use it easily.
