VOLTE: Location information in S8HR
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in case of VOLTE roaming integrated in S8 Home-Routing, does the subscriber location information contained in the SIP message generated from the UE?
If not, how the S-CSCF obtain this information?
Is it by querying the HSS (Diameter Cx interface)? if yes when? on SIP registration or per each call attempt?
Is there an option that the S-CSCF will not be aware on the subscriber location and the TAS shall obtain it by querying the HSS (Diameter Sh interface)
If not, how the S-CSCF obtain this information?
Is it by querying the HSS (Diameter Cx interface)? if yes when? on SIP registration or per each call attempt?
Is there an option that the S-CSCF will not be aware on the subscriber location and the TAS shall obtain it by querying the HSS (Diameter Sh interface)
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