1
John B Harlow, Murphy Kolipakam, Sankara R Polepalle, George Y Wyatt: Method and apparatus for alerting multiple telephones for an incoming call. AT&T Bell Laboratories, Michael B Johannesen, April 27, 1993: US05206901 (211 worldwide citation)

A system for alerting a plurality of telephones in response to an incoming call to a destination directory number. A handling switch sends a query to a centralized database requesting routing instructions, and the database returns the directory numbers of the plurality of telephones to be alerted fo ...


2
Garry R Daly, William E Hagerman, Sankara R Polepalle, Earle H West: Telecommunication disaster plan. AT&T Bell Laboratories, Werner Ulrich, June 22, 1993: US05222128 (23 worldwide citation)

In case of a disaster at one of a plurality of customer's locations, it is desirable to provide for a massive rerouting of telephone calls to that customer. A SafetyNet Service Reconfiguration (SSR) tool enables a network service provider to provide a recovery service for the event where a customer' ...