Telephone call notification feature

摘要

A facility is disposed in a telecommunications network to provide an alternative to the conventional call waiting feature. More particularly, if a telephone call is placed to a subscriber while the subscriber's telephone station set is busy with another telephone call, then the facility notes that fact and terminates the new telephone call after advising the caller that the subscriber's station is busy. Thereafter, the facility places a telephone call to the subscriber and presents thereto at least the telephone numbers of the telephone stations that placed respective calls to the subscriber during the time that the latter's station was busy.