@Remote: You wrote “only “Data”-selected sim”. Do you mean that you have chosen this SIM for mobile data in Sailfish menu “Settings > Mobile network > Use SIM card” (while the other SIM is assigned for call and messages in “Settings > SIM cards”), or, do you mean that you have such a contract with your operator/carrier that your SIM does not support phone calls at all - so, it is just “data only”?