The center driving gear (14) comprises a shaft (15) and a wheel (19) friction-mounted the shaft (15).

A channel request message is communicated from the first mobile switching station (MSCI) to a second mobile switching station (MSCII) within the second system.

A method for bypassing called intelligence is used in the situation that a Gateway Mobile Switching Center (GMSC) and a Visited Mobile Switching Center (VMSC) do not belong to the same Mobile Switching Center (MSC).

The system includes a mobile terminal (22), a serving mobile switching center (S-MSC) (18) for serving the mobile terminal, and a gateway mobile switching center (G-MSC) (14) for receiving an incoming call from a caller for the mobile terminal.

The serving mobile switching center (18(1)) sends a hand-off request message (160) to a target mobile switching center (18(2)).

The mobile operator system comprises a billing center.

The SMSC forwards the message to a mobile switching center (MSC) which passes the message to the subscriber's mobile unit.

The system also includes an announcement machine (11) connected to the MSC and a voice mail machine (15) connected to the MSC.

In a mobile communication network including at least one mobile switching center and at least one mobile station, a method and system are provided for paging a mobile station.

The radio telecommunications network includes a mobile switching center (MSC) (13) serving the mobile station (11).

The base station may send the mobile equipment identifier to the mobile switching center during call setup.

The MSC automatically sends the information to the monitoring center at predetermined times.

By choosing an available MSC as a called party through the back-up center, it is ensured to connect a called user successfully when a MSC is in fault.

An information processing system is provided with a center server, a first moving object that communicates with the center server, and a second moving object that communicates with the center server.

In an exemplary system, messages which originate at a mobile unit are routed through both a service center associated with the originating mobile and a service center associated with a recipient mobile.