Are you recieve wrong call on your cell phone????

On my old number I would recieve voicemail for a man called David. What was weird though, was my phone would never ring when these calls were made. Nearly everyday someone was leving a message for David and in the end it became quite funny. Until one day when I got a message from a woman crying down the phone, saying she was on her way to the hospital. I couldn't make out the message fully but it did sound serious. I text them back explaining this was not Davids phone number. After that I never heard from David's friends again. It was quite surreal!!