Re: [Sip-implementors] Query on SIM swap
thank you Paul for guidance Regards Ranjit On Tue, May 12, 2020 at 8:13 AM Paul Kyzivat wrote: > Since this discussion seems to be specific to 3gpp use of SIP I suggest > you continue this discussion in some 3gpp-specific forum. > > On 5/11/20 7:50 PM, ankur bansal wrote: > > Hi Ranjit > > > > There is no clear specification saying UE should deregister when SIM is > > removed . > > But if refer multiple specs , we can reach a point where UE supposed to > do > > it . > > > > As per 3gpp 24.301 > > 5.5.2.1 General > > > > *The detach procedure with appropriate detach type shall be invoked by > the > > UE* if the UE is switched off, > > *the USIM cardis removed from the UE* or the EPS capability of the UE is > > disabled or the UE wishes to detach for non-EPS services > > > > As per FCM0.1 VoLTE Service Description and Implementation Guidelines > > > > 3.2.2 VoLTE UE Initiated Detach and IMS Deregistration > > 3.2.2.1 General > > *A VoLTE UE shall automatically deregister from IMS before performing an > > LTE Detach* > > > > > > Even we have seen use-cases where there are services linked with SIM ,and > > UE can do refresh registration removing those capabilities > > when SIM is removed . > > > > SIM swap anyway will be taken care if UE does IMS deregistration or > > refresh-registration while SIM is removed. > > > > Hope this helps. > > > > Regards > > Ankur Bansal > > > > > > On Sun, May 3, 2020 at 8:37 PM Ranjit Avasarala > > wrote: > > > >> Thank you Dale. as part of SIM swap testing, I came across the below > >> scenario: > >> the Phone number (MSISDN-1) was registered with IMSI (IMSI-1). when SIM > >> Swap occurred, the INVITE came with a different IMSI and CSCF sends > >> diameter SAR with "Unregistered user". But HSS thinks user is registered > >> and sends SAA with DIAMETER_UNABLE_TO_COMPLY error. CSCF translates > this > >> error to 500 Internal Server Error. > >> So is this the expected behavior? > >> > >> Regards > >> Ranjit > >> > >> On Sun, May 3, 2020 at 9:07 PM Dale R. Worley > wrote: > >> > >>> Ranjit Avasarala writes: > Does SIM swap procedure on a SIP UE trigger re-registration? if not > >> when > calls are made from the device, the INVITE would have the IMSI of the > >> new > SIM card? > >>> > >>> The answers aren't set by the SIP standards. However, given that the > >>> SIM gives the Directory Number of a PSTN telephone, I would expect that > >> if > >>> you change the SIM on a UE, the UE would register for the new DN. > >>> > >>> In SIP, the From address in an INVITE is not necessarily connected with > >>> any AOR that the UE registers for. But in a PSTN telephone, I would > >>> expect it to use the SIM's DN as the From URI. > >>> > >>> Dale > >>> > >> ___ > >> Sip-implementors mailing list > >> Sip-implementors@lists.cs.columbia.edu > >> https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > >> > > ___ > > Sip-implementors mailing list > > Sip-implementors@lists.cs.columbia.edu > > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > > > > ___ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
Re: [Sip-implementors] Query on SIM swap
Since this discussion seems to be specific to 3gpp use of SIP I suggest you continue this discussion in some 3gpp-specific forum. On 5/11/20 7:50 PM, ankur bansal wrote: Hi Ranjit There is no clear specification saying UE should deregister when SIM is removed . But if refer multiple specs , we can reach a point where UE supposed to do it . As per 3gpp 24.301 5.5.2.1 General *The detach procedure with appropriate detach type shall be invoked by the UE* if the UE is switched off, *the USIM cardis removed from the UE* or the EPS capability of the UE is disabled or the UE wishes to detach for non-EPS services As per FCM0.1 VoLTE Service Description and Implementation Guidelines 3.2.2 VoLTE UE Initiated Detach and IMS Deregistration 3.2.2.1 General *A VoLTE UE shall automatically deregister from IMS before performing an LTE Detach* Even we have seen use-cases where there are services linked with SIM ,and UE can do refresh registration removing those capabilities when SIM is removed . SIM swap anyway will be taken care if UE does IMS deregistration or refresh-registration while SIM is removed. Hope this helps. Regards Ankur Bansal On Sun, May 3, 2020 at 8:37 PM Ranjit Avasarala wrote: Thank you Dale. as part of SIM swap testing, I came across the below scenario: the Phone number (MSISDN-1) was registered with IMSI (IMSI-1). when SIM Swap occurred, the INVITE came with a different IMSI and CSCF sends diameter SAR with "Unregistered user". But HSS thinks user is registered and sends SAA with DIAMETER_UNABLE_TO_COMPLY error. CSCF translates this error to 500 Internal Server Error. So is this the expected behavior? Regards Ranjit On Sun, May 3, 2020 at 9:07 PM Dale R. Worley wrote: Ranjit Avasarala writes: Does SIM swap procedure on a SIP UE trigger re-registration? if not when calls are made from the device, the INVITE would have the IMSI of the new SIM card? The answers aren't set by the SIP standards. However, given that the SIM gives the Directory Number of a PSTN telephone, I would expect that if you change the SIM on a UE, the UE would register for the new DN. In SIP, the From address in an INVITE is not necessarily connected with any AOR that the UE registers for. But in a PSTN telephone, I would expect it to use the SIM's DN as the From URI. Dale ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
Re: [Sip-implementors] Query on SIM swap
Hi Ranjit There is no clear specification saying UE should deregister when SIM is removed . But if refer multiple specs , we can reach a point where UE supposed to do it . As per 3gpp 24.301 5.5.2.1 General *The detach procedure with appropriate detach type shall be invoked by the UE* if the UE is switched off, *the USIM cardis removed from the UE* or the EPS capability of the UE is disabled or the UE wishes to detach for non-EPS services As per FCM0.1 VoLTE Service Description and Implementation Guidelines 3.2.2 VoLTE UE Initiated Detach and IMS Deregistration 3.2.2.1 General *A VoLTE UE shall automatically deregister from IMS before performing an LTE Detach* Even we have seen use-cases where there are services linked with SIM ,and UE can do refresh registration removing those capabilities when SIM is removed . SIM swap anyway will be taken care if UE does IMS deregistration or refresh-registration while SIM is removed. Hope this helps. Regards Ankur Bansal On Sun, May 3, 2020 at 8:37 PM Ranjit Avasarala wrote: > Thank you Dale. as part of SIM swap testing, I came across the below > scenario: > the Phone number (MSISDN-1) was registered with IMSI (IMSI-1). when SIM > Swap occurred, the INVITE came with a different IMSI and CSCF sends > diameter SAR with "Unregistered user". But HSS thinks user is registered > and sends SAA with DIAMETER_UNABLE_TO_COMPLY error. CSCF translates this > error to 500 Internal Server Error. > So is this the expected behavior? > > Regards > Ranjit > > On Sun, May 3, 2020 at 9:07 PM Dale R. Worley wrote: > > > Ranjit Avasarala writes: > > > Does SIM swap procedure on a SIP UE trigger re-registration? if not > when > > > calls are made from the device, the INVITE would have the IMSI of the > new > > > SIM card? > > > > The answers aren't set by the SIP standards. However, given that the > > SIM gives the Directory Number of a PSTN telephone, I would expect that > if > > you change the SIM on a UE, the UE would register for the new DN. > > > > In SIP, the From address in an INVITE is not necessarily connected with > > any AOR that the UE registers for. But in a PSTN telephone, I would > > expect it to use the SIM's DN as the From URI. > > > > Dale > > > ___ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
Re: [Sip-implementors] Query on SIM swap
Thank you Dale. as part of SIM swap testing, I came across the below scenario: the Phone number (MSISDN-1) was registered with IMSI (IMSI-1). when SIM Swap occurred, the INVITE came with a different IMSI and CSCF sends diameter SAR with "Unregistered user". But HSS thinks user is registered and sends SAA with DIAMETER_UNABLE_TO_COMPLY error. CSCF translates this error to 500 Internal Server Error. So is this the expected behavior? Regards Ranjit On Sun, May 3, 2020 at 9:07 PM Dale R. Worley wrote: > Ranjit Avasarala writes: > > Does SIM swap procedure on a SIP UE trigger re-registration? if not when > > calls are made from the device, the INVITE would have the IMSI of the new > > SIM card? > > The answers aren't set by the SIP standards. However, given that the > SIM gives the Directory Number of a PSTN telephone, I would expect that if > you change the SIM on a UE, the UE would register for the new DN. > > In SIP, the From address in an INVITE is not necessarily connected with > any AOR that the UE registers for. But in a PSTN telephone, I would > expect it to use the SIM's DN as the From URI. > > Dale > ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
Re: [Sip-implementors] Query on SIM swap
Ranjit Avasarala writes: > Does SIM swap procedure on a SIP UE trigger re-registration? if not when > calls are made from the device, the INVITE would have the IMSI of the new > SIM card? The answers aren't set by the SIP standards. However, given that the SIM gives the Directory Number of a PSTN telephone, I would expect that if you change the SIM on a UE, the UE would register for the new DN. In SIP, the From address in an INVITE is not necessarily connected with any AOR that the UE registers for. But in a PSTN telephone, I would expect it to use the SIM's DN as the From URI. Dale ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
