With iOS 13, both of your lines can make and receive voice and FaceTime calls and send and receive messages using iMessage, SMS, and MMS. Your iPhone can use one cellular data network at a time.
Each line on your iPhone will have a default name of either “Primary” or “Secondary” to distinguish between numbers. In theCellular Settingsof your iPhone, you can also customize your own name for each line. For example, you can name your lines “Work” and “Personal”.
How to make and receive calls
- For outgoing calls, you can choose between the Primary and Secondary number. While you’re on a call, Primary or Secondary label will display on your device.
- For incoming calls, the first letter of each label (“P” or “S”) will display on your iPhone so you can identify each line.
How to send and Receive Messages
- For outgoing messages, you can choose between the Primary and Secondary number.
- For incoming messages, it is a single inbox and there is no “P” or “S’ label.
To Learn more about how Dual SIM works for iPhone, visithttps://support.apple.com/en-ca/HT209044
