How to enable dual sim calling ask for sim 1 sim 2 in realme

When I call this number, it does not come from the dual SIM option. But in this case, when I call another number, there is an option of dual SIM. Here you can select only SIM One or SIM Two ************************************************************************************ If you are really interested in my video please follow me on YouTube and Facebook …………………………………………………………………………………………………. Subscribe to my channel:    / channel   FACEBOOK GROUP:   / 411530109484518   FACEBOOK PAGE:   / itmagicsbd   ………………………………………………………………………………………………….. Background music:    / channel