[GT-S6102] Why SIM 2 is offline when SIM 1 is receiving a call?
To start with, GT-S6102 is a dual standby Duos phone and it is normal for the 2nd SIM to go offline while having a call on the 1st SIM (vise versa).
However; during the call, the SIM recieving a call can recieve waiting calls and thus we can do some call forwarding options to transfer the call from the offlined SIM 2 to online SIM 1.
Please follow the steps below to apply Call Forwarding Service on the device:
1. Go to Setting->SIM card Manager ->Dual SIM always on.
2. Input SIM 1 and SIM 2 mobile numbers.
3. Choose Both SIM Cards
4. Confirm by selecting OK
Now you can recieve any incoming calls whether the other SIM card is offline.
Thank you for your feedback!
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