Where to check International Roaming Parameter in HLR & HSS

Question

Hi ,

If any subscriber roamling in International Location how we can check on Home HLR/HSS to get its Int roaming Location .

Any specific parameter to get the details .

Answer 1

Whenever an UE attach to MME, MME updates UE's location into HSS by sending "Update-Location-Request" message. In this Diameter message, {Visited-PLMN} is a mandatory AVP . From HSS, by fetching this parameter value, it can be make out that where exactly the UE is present as of now. PLMN is the combination of MCC and MNC. MCC will say in which country it is roaming and MNC says which network is providing services.

Comments

Thanks , IMSI=MCC+MNC will provide the HPLMN details at VPLMN , However if at HSS ,checking the current subscriber position roaming in which country ,Is there any specific subscriber profile parameter at HSS who provide the details of Roaming .