Central immediate carriers for implementing mobile phones call collecting method, has automatic activation and messaging devices, and modules coupled to output extensions for receiving calls made from mobile phones adjusted with hidden call

摘要

The central intermediate carrier (1) has automatic activation and messaging devices (2), and modules coupled to output extensions (3) for receiving the calls made from mobile phones adjusted with hidden call. A recorded welcome message is played, and a warning message is activated identifying the need for the calling number. Alarms (4) for output extensions are provided by light emitting diodes of three different colors that are coupled to each of the output extensions.