Nope. The message was one of several on my cell phone. As I was listening to and deleting the messages, all of a sudden I was talking to someone. She did not expect to hear from me, and neither did I expect to hear her.
From what I can tell (I'm an IT type) they had imbedded the call codes in the message.
I knew that could be done on a regular phone, the phone company makes a call based on tones. Apparently, and it makes sense to me know, the call codes on a cell phone are silent.
Hmmm... Interesting. Potential for lots of abuse there...