Third Party dependencies with Vivox Plugin

I can’t understand how the Build file should setup in order to use the Vivox plugin.
When I include “VivoxVoiceChat” in the PublicDependencyModulesNames, it compiles, but in my player class when I add #include VivoxVoiceChat, and initialize FVivoxVoiceChat, it returns the compilation errors:

C:\Users\HOTMAX\Desktop\UE\UnrealEngine\Engine\Plugins\Online\VoiceChat\VivoxVoiceChat\Source\Public\VivoxVoiceChat.h(12): fatal error C1083: Cannot open include file: 'vivoxclientapi/debugclientapieventhandler.h': No such file or directory

Within VivoxVoiceChat.h, the missing libraries are included within a THIRD_PARTY_INCLUDES_START macro, which makes me believe there is an issue with third party dependencies.