What do I do if I receive a message from a caller that I'm not interested in?

You can simply delete the message and move on. The person that left the message may send you another message, but that's all they can do. There is no way for them to get in touch with you outside of TangoPersonals, as all of your personal information is kept confidential. While on the Connector, if you get unwelcome messages, or just don't like what you hear while you're browsing, you can block the caller from sending you messages by pressing 7, when the system prompts you.