About Class4 Version 5

DNL Class 4 Fusion Version 5 is a popular Class 4 switch especially in the United States. This cook book is a mean to help new user to start using our switch.

This cookbook is a fast-food type of user manual for users to get started very quickly to deploy and run calls. It provide the most basic setup and some common questions we normally get asked.

However, Class 4 is a very huge platform and have more features than what we are covering here. You can check all features from our user manual at

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