Set which SIM card to use
You can set which SIM card to use for outgoing calls or messages. If you name your SIM cards, you can see at a glance which is, for example, for work and which is for personal use.
Press the SIM manager key.
Select SIM1 or SIM2.
To be prompted to select a SIM card before, for example, making a call or sending a text message, select Ask every time.
Select Options > Rename .