I've received the same call...from the same number.
I've not actually caught the phone when the call came in but in trying to call back, either the line is busy OR the phone is silent and then sounds as though it's trying to dial something.
Phone rang 3 or more times I answered and no one was there. I called the number back and it was busy so I waited a few minutes and called again. It then made sounds as if it was dialing a number.
I've received the same call...from the same number.
I've not actually caught the phone when the call came in but in trying to call back, either the line is busy OR the phone is silent and then sounds as though it's trying to dial something.