08. *The user has 2 SIMs, one with active data & one with only voice calling. We are live with the operator of the sim active with mobile data. While registration the end-user uses SIM no 2 i.e. sim with only voice to punch in the MSISDN of sim no 1 which is active with mobile data, in this case also the SP would be sent a false verification & charged for the same. Am I Correct?

Hi Sukant, as far as I understood Milan and Alex, in any dual sim phones, both SIM cards can be active for different services. When you are setting up your dual SIM phone you have the option to choose: 

for CALLS – SIM 1 or SIM 2 

for SMS – SIM 1 or SIM 2 

for Data – SIM 1 or SIM 2 

Which means that Data SIM 1 will be set for example if it has active mobile data and then there will be no problem for using our solution as a standard model. 

Hope we are thinking in the same way. 

Does your phone has these capabilities as described above – to choose for every separate service which SIM (1 or 2) will be used