Telecom Articles - Written by Arthur Hughes - 1 Comment
What is VoIP?
The basic idea in VoIP is to convert an analog voice conversation from a microphone or telephone handset into compressed digital form so that it can be sent over the Internet in packets. VoIP uses an analog telephone adaptor (ATA) — a device used to connect a standard telephone to a computer or network so that the user can make calls over the Internet. The ATA contains a codec, which stands for coder-decoder. A typical VoIP codec samples an analog voice conversation 8,000 times a second and converts each sample into digital bits. The bits are grouped together into a payload packet that is sent 30 to 50 times per second
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