It present, there exist systems, which send emails, receive emails and replies, and store messages in boxes. There also exist systems, which send SMS messages to the network of one mobile phone operator, receive SMS messages and replies, and store SMS messages in boxes. However there exists no system...http://www.google.fr/patents/US20030220979?utm_source=gb-gplus-shareBrevet US20030220979 - Virtual mobile phone - SMS box
