With the Real-Time Audio-Video feature, you can use a microphone connected to the client device in a remote desktop or published application. Real-Time Audio-Video is compatible with standard audio devices and with standard conferencing applications such as Skype, WebEx, and Google Hangouts.
Only the audio-in feature is supported. The video feature is currently not supported.
The first time you use a microphone, Horizon Client prompts you for permission to access it. You must grant permission for the microphone to work with the remote desktop or published application. You can enable and disable access to the microphone by changing the Microphone permission for Horizon Client in the iOS Settings app.