Mobile Service Switching Center have important functions in switching communication in the entire MS in the MSC area. Such as setting up, routing, supervising calls to and from MS.
MSC-Mobile Service Switching Center functions:
- Establish a connection and traffic signaling.
- Billing: Recording of the duration of speech.
- Pagging: The process of giving signals to the BTS, which has the frequency with the same frequency signal MSC issued with the purpose to find the Subscriber calling.
- Handover: This process can also occur in the MSC. The process of handover to the MSC called the inter handover MSC.
- Access to the data base to PLMN (VLR, HLR, EIR).
- Implement security functions.
Data Transmision MSC contains Interface (DTI), which is implemented on a GSM interworking function (IWF). DTI to handle data functions such as data conversion rate.
MSC / VLR implemented on AXE as follows:
• MSS (Mobile Switching Subsystem) handle and to set up the call, charging implemented for supporting function and the gateway GMSC on roaming.
• MMS (Mobile Mobility and Radio Subsystem) handle up date location, authentication and chippering access to all the radio. handle requests handover and paging. Save information about the cell and torture.
• MMS creation (Mobile Data Subsystem) Save the data received by the HLR.
• SHA (Short Message Service Subsystem) Contains the Short Message Service (SMS).
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