Same message from Multiple numbers. Message "Hi, this is Heather. I'm calling from the dealer processing department regarding your vehicles warranty. We sent you a final notice in the mail letting you know that your warranty has expired, and this is a final courtesy call to renew the warranty before we close the file would you like to speak to a warranty specialist? Would you like to speak to a warranty specialist? Would you like to speak to a warranty specialist?"
I received a call from this number on my mobile phone earlier this morning. The caller did not leave a message. I can only imagine that the purpose was the same as what others have mentioned here.