Full Form of NSS
The full form of NSS is the Network switching subsystem.
|Network switching subsystem
What is NSS
The network switching subsystem is the component of a GSM system that performs call and mobility management functions for mobile phones roaming in the base station network.It is owned and implemented by mobile phone operators and enables mobile devices to communicate with each other and with phones on the broader public switched telephone network (PSTN).
Functions of NSS
- Call control
This identifies the subscriber, establishes a call, and clears the connection after the conversation is over.
This collects the charge information of a call (the caller and called party numbers, the time and type of transaction, etc.) and transfers it to the Billing Center.
- Mobility management
This maintains information about the subscriber’s location.
This applies to the interfaces to BSS and PSTN.
- Subscriber data handling
This is the permanent data storage in the HLR and the temporary storage of relevant data in the VLR.
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