Switching centre for mobile radio application.

The switching centre of the invention comprises a switch for access to the service (11) and a monitoring point (12) which are connected by a multiplex connection (601). The switch is connected to base-station monitors by first multiplex connections (65) and to the switched public telephone network by second multiplex connections (610) also routing indicator signals relating to a permanent file, to a temporary file and to other switching centres. The switch establishes semi- permanent connections between the multiplex connection (601) connecting it to the monitoring point (12) and, on the one hand, the first multiplex connections (65) for an exchange of indicator signals, and, on the other hand, with the second multiplex connections (610) for an exchange of indicator signals with the permanent and temporary files and the other switching centres. …<IMAGE>…