id="REI-00001" date="20120214" Anonymous voice communication between a first station and a second station is facilitated by providing an interface that allows input of a transaction specification from at least one of the first and second stations. A reference code associated with the transaction is...http://www.google.de/patents/USRE43181?utm_source=gb-gplus-sharePatent USRE43181 - Communication between parties or stations over a network