A method, computer-readable storage device and apparatus for establishing an ad hoc communication with an unknown contact are disclosed. For example, the method receives an authentication token from a recipient endpoint device for authentication of an unsolicited message from a sender endpoint device, wherein the recipient endpoint device is an unknown contact to the sender endpoint device and the unsolicited message is sent over an open communications protocol, authenticates the authentication token, and sends a confirmation that the authentication token is authenticated to the recipient endpoint device to allow the recipient endpoint device to establish a connection to the sender endpoint device to begin the ad hoc communication.