A method and apparatus for processing incoming telephone calls includes structure and process steps whereby an incoming telephone calling signal having a data message associated therewith is received. The data message is processed to determine whether it is a first type of message or a second type of...http://www.google.es/patents/US5228080?utm_source=gb-gplus-sharePatente US5228080 - Method and apparatus for processing an incoming telephone call signal which may include a data message
Method and apparatus for processing an incoming telephone call signal which ...