Chapter 7. Gateway and Trunk Concepts

The Process of Converting Voice to Packets: This section discusses the Nyquist theorem as it relates to converting the audio coming into a telephone into a digital packet.

Choosing a Voice Codec: One of the key facts you’ll need to know before deploying VoIP is how much network bandwidth the audio will use. This section discusses a variety of voice codec considerations along with the necessary bandwidth calculation formulas.

Trunking CME to the PSTN: The PSTN remains the key connection for any voice network. This section discusses multiple analog and digital methods to connect to the PSTN.

Trunking CME to Other VoIP Systems: In the next-generation voice network, communication can occur between ...

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