filmkr27, dealing with strange phone activity can be overwhelming, especially if there's a possibility of being spoofed or hacked. Knowing what to do is crucial, especially if this problem has happened twice. Have you provided your number to third-party groups (online shopping, internet surveys, etc.)? Aside from the missed calls received by your friends, any other issues going on with your number/phone? Does your device show the outgoing calls to your friends and have you done any recent changes (new apps, software update, etc.)?