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LTE: How does international roaming work ?

+1 vote
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I want to know, how MME of roaming network (different country) gets the user profile from HSS (residing at different country) ?

posted Jan 13, 2019 by Harshita

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+1 vote

As we know that on basis of CAMEL contract, International roaming is possible, Visited-PLMN will generate the CDR at end and then forward it to home-PLMN. On basis of Call Data Records (CDR) home-PLMN will bill the user later in their currency.

The charging between the Operator's will happen as per the agreement.

So my Query is What if the user has crossed his credit limit during international roaming and ongoing call. How Visited PLMN will get to know about this information In between the ongoing call?

0 votes

5G network is following service based architecture and network slicing concepts to serve multiple sets of UEs/use cases. I am curious to know that how home PLMN is going to provide its services to its subscribers through visited network (international roaming) ? What would be preferred way by an operator ?

+1 vote

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 .

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