A while ago, I was searching for a solution to the same problem, and I found https://freshnumber.com . It’s a fantastic app that lets you get a second number specifically for private or temporary calls. I’ve used it for freelance projects and even when selling items online. The app ensures your personal number remains hidden, and it’s so easy to set up. Plus, it’s cost-effective compared to getting another phone or SIM. What I love most is that it works instantly, so you can start using the second number right away. If you need an anonymous calling solution, I’d highly recommend trying FreshNumber.