The invention provides a telecommunication relay device that relays communication from a first party to at least one second party. The first party and the second party may use terminals of different types such as telephone stations, text telephones, two-way pagers, personal digital assistants with communication...http://www.google.de/patents/US20020037074?utm_source=gb-gplus-sharePatent US20020037074 - METHOD AND APPARATUS FOR RELAYING COMMUNICATION