CoreSwitch is a free Chrome extension designed to toggle WebRTC echo cancellation for specific URLs, making it an essential tool for VoIP application testing. This extension is particularly useful in scenarios where echo feedback is a critical acceptance criterion for evaluating audio transmission quality between callers and receivers. By allowing users to switch echo cancellation on and off, it facilitates a more thorough examination of audio performance in various conditions.

In addition to its main feature, CoreSwitch integrates seamlessly with DTMF CLI tools for inband DTMF generation. This capability enhances automated VoIP testing workflows, providing users with a comprehensive solution to assess and verify VoIP systems effectively. Ideal for developers and testers, CoreSwitch streamlines the process of ensuring optimal audio quality in VoIP communications.