The present invention provides apparatus and method for automatic number identification (ANI) for a data access arrangement (DAA) of a modem. Modems or telephones equipped with an ANI system use the caller ID (ANI) signals to identify the calling telephone or modem. For automatic number identification,...http://www.google.de/patents/US5901210?utm_source=gb-gplus-sharePatent US5901210 - Method and apparatus for implementing automatic number identification system for DAA
