How does Huawei set the dual-card dialing option?

If two SIM cards are inserted into the phone at the same time, you can set the default data card and default dial card, or set the call transfer between the two cards.

1. Set default data card and dial card.

Go to settings > mobile network > SIM card management, and set card 1 or card 2 as the default data card and dial card.

2. Turn on call forwarding between dual cards.

When the incoming call from one card can't come in, transfer the incoming call to another card to avoid missing the incoming call.

Go to Settings > Mobile Network > SIM Card Management >; Call transfer between two cards.

Select the call forwarding mode and turn on the corresponding switch.

If the switches are turned on at the same time, Card 1 and Card 2 can transfer calls to each other.