CollabIP Tethr.AudioBroker by: CollabIP Tethr .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.7 This package targets .NET Framework 4.7. The package is compatible with this framework or higher. 47,704 total downloads last updated 8/18/2023 Latest version: 2.2.1.2 SDK for sending calls, chats, and cases to Tethr.