ZTE Mobile Switching Center Server / intelligent Controller Extensive

The TOE is a soft switch plus clients that together perform the management and control function in an IMS network. The TOE is used to provide signal transfer, control and management and lawful interception services to the IMS telecommunications network.
The TOE consists of four parts:

* An MSCS, consisting of:
- An MSCS Service Part, responsible for performing the telecommunication services,
- An OMS (Operations Maintenance Server), responsible for management and maintenance of the MSCS,
- An LIS (Lawful Interception Server), allowing configuration of the Lawful Interception aspects of the MSCS and sending any lawfully intercepted signalling data to the Lawful Interception Center,
- A CUS (Charge Uniform Server), responsible for generate billing information and sending this information to the Billing Center for further processing.

* An OMM Client, consisting of a Java application, running on a non-TOE workstation. This client is a graphical user interface to the OMS. The combination of Client and OMS is called the OMM (Operational Maintenance Module).

* A LIG Client, consisting of a Java application, running on a non-TOE workstation. This client is a graphical user interface interface to the LIS. The combination of Client and LIS is called the LIG (Lawful Interception Gateway).

* A CUS Client, consisting of a Java application, running on a non-TOE workstation. This client is a graphical user interface to the CUS.