Tried Rebtel for the first time to call relatives abroad and was impressed with how simple the setup was. Most calls were crystal clear, but during one evening call, the audio kept cutting out. Curious if it was just a one-off, I looked through https://rebtel.pissedconsumer.com/customer-service.html for similar experiences. Some users mentioned that local network conditions can occasionally impact clarity. I switched to Wi-Fi and called earlier the next day—zero issues after that. It's a convenient service overall, especially once you learn when the connection tends to be strongest.