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  • FAQs

    What is HSS?

    The Home Subscribe Server is the main IMS database which also acts as database in EPC. The HSS is a super HLR that combined legacy HLR and AuC functions together for CS and PS domains. In the IMS architecture, the HSS connects to application servers as...
  • FAQs

    What is MME?

    The Mobility Managemnet Entity is the main signaling node in the EPC. It is responsible for initiating paging and authentication of the mobile device. It also keeps location inforamtion at the Tracking Area level for each user and is involved in choosing...
  • FAQs

    What is eNB?

    Evolved Node B (eNB) is the only mandatory node in the radio access network (RAN) of LTE. The eNB is a complex base station that handles radio communications with multiple devices in the cell and carries out radio resource management and handover decisions...