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Glossary of VoIP Terms |
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| Channel | A transmission path |
| Circuit | Carries a single phone call on the PSTN. |
| Codec | Coder/Decoder. An algorithm or chipset that converts analog sound to digital data and vice-versa. |
| Jitter | The variation in the time between the arrival of packets caused by network congestion, timing drift, or route changes. |
| Latency | The time taken for a voice signal to travel from the person speaking to the person listening. |
| Packet | The elementary unit of data transferred on the Internet or any packet-switched network. | POTS | Plain Old Telephone Service. The type of service carried on the PSTN. |
| PSTN | Public Switched Telephone Network. The telephone system based on copper wires carrying analog signals. |
| TCP/IP | Transmission Control Protocol/Internet Protocol. The basic method through which information is transferred over the Internet. |
| VoIP | Voice over Internet Protocol. A method for communicating via telephone by converting analog voice signals to digital packets for transmission over the Internet or a private network.
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