Suparelay

Suparelay is a browser-based calling service. It lets users place calls to landline and mobile numbers anywhere in the world directly from a web browser, without additional calling hardware or a separate desktop application.

It may suit individuals who need to reach phone numbers internationally, people working away from their usual phone line, and anyone who prefers to handle outbound calls from the same device they already use for other work.

Further details, including supported destinations, audio requirements and any account or billing arrangements, are available on the product website at suparelay.app.