How is the voice quality of Internet telephony Gateway?
It is no more a puff for Internet telephone to provide toll-quality voice service. To achieve this goal, most Internet telephony servers use the industry standard and high quality voice coders including G723.1, G729A and advanced voice compression/decompression technology to deliver high quality Voice over IP (VoIP) services. ITG Voice quality is determined primarily by three major factors, delay, packet loss, and jitter. That is, the lower the delay, the less the packet loss and the smaller the jitter, and the better the voice quality. The low delay, packet loss and jitter simply require sufficient Internet bandwidth between the originating and destination gateways.