When the phone uses dual SIM cards, you can modify the default SIM card to dial or access the Internet, which is convenient for controlling mobile data and calls from the dual SIM cards.
Setting method:
realme UI 7.0 & 6.0 & 5.0 & 4.0 & 3.0: Settings > Mobile Network > Mobile data > Calling/Internet > Select SIM 1/2/Always ask
realme UI 2.0 & 1.0: Settings > SIM card & mobile data > Default SIM settings > Calling/Internet > Select SIM 1/2/Always ask
realme UI R & T & S & Go & U Edition: Settings > Network & internet > Select SIM 1/2 > Call preference/Mobile data/Ask every time
When the default calling card is set to SIM 2, when you dial, SIM 2 will be used to make a call.
When the default Internet card is set to SIM 2, when you use mobile network, SIM 2 's mobile data will be used.
