Apple dual card dual standby can receive contacts without SMS verification code.

According to the different problems, there are the following solutions.

Method 1: 1. In the phone settings interface, click cellular network. 2. In the cellular network interface, select the closed cellular number. 3. In the expanded interface, just open this number. Method 2: Click the general option in the settings. Click Restore Settings in the menu bar. Click Restore All Settings Options. Enter the password in the pop-up page and restart the phone.

In Chinese mainland, Hongkong and Macau, some mobile phones already support dual-card function through two SIM cards. This means that you can use two phone numbers to make and receive calls and send and receive text messages.