Media Stack Documentation
Important Note: This is a sample implementation of a client media stack designed to demonstrate the RTP processing capabilities of the DMCC SDK. [ in a windows environment. It is NOT intended for production use of voice traffic but can assist a developer with prototyping of a solution ]
Click here for important information about using the Media Stack in production environments.
https://www.devconnectprogram.com/site/global/products_resources/avaya_aura_application_enablement_services/interfaces/dmcc/development_tools_configurations/media_stack.gsp
AE Services Device, Media, and Call Control Media Stack API Reference Release 4.2 (119 KB .zip)
https://www.devconnectprogram.com/fileMedia/download/022dca72-ae66-46d5-ae1d-b3c940c7955b
I believe there is sample code for a simple softphone in the DMCC Java SDK
https://www.devconnectprogram.com/site/global/products_resources/avaya_aura_application_enablement_services/releases/7_1_2/index.gsp
click downloads
then click DMCC APIs
then scroll down and select the appropriate version of the SDK and download the Java version of the documentation.