can you provide some example?

[bingshen]

I want to use this package to make a client send some pcm data to server.
Is there some simple code for client and server?

[schnelle]

This project only aims at the MRCPv2 portion. In case you also want audio streaming, you may want to check https://github.com/JVoiceXML/cairo which uses MRCPv2 and also has some examples.