Will I still receive calls on my primary number if I activate a Qoolline eSIM?

Yes, you can receive calls on your primary number even when using a Qoolline eSIM, provided your device supports Dual SIM Dual Standby (DSDS) technology. This feature allows both a physical SIM and an eSIM to be active simultaneously on many modern smartphones. For instance, recent iPhone models, like the iPhone 13 series and newer, support Dual SIM with two active eSIMs or a combination of a nano-SIM and an eSIM. Older models, such as the iPhone 12, iPhone 11, and iPhone XS, allow the use of one nano-SIM and one eSIM, with only one eSIM active at a time.

Setting Up Dual SIM on iPhone 13 and Newer Models:

1. Preparation: Gather your iPhone 13 (or newer) with your Qoolline eSIM details and your physical SIM if applicable.
2. Activation: Insert the SIM, power on your iPhone, and ensure carrier readiness for eSIM.
3. Setup in Settings: Go to Settings > Cellular/Mobile Service > Add eSIM and activate your eSIM.
4. Assign Lines: Designate mobile data and messaging preferences for each SIM/eSIM.
5. Label Your Lines: Customize names for each line under "Lines" if desired.

Important Note: Using two SIMs can consume more battery. For efficient management, consider keeping a charger nearby.

Limitations When Using Qoolline eSIM with Your Primary Number

1. Call Forwarding Between eSIM and SIM Lines:
   Not all devices fully support the DSDS feature. If your device does, you can maintain connections on both your physical SIM and eSIM. Keep in mind that while iPhone 13 models allow two active eSIMs or a nano-SIM and an eSIM, older iPhone models limit you to one active eSIM at a time.

2. Data Usage Tracking for Each Line:
   Monitoring data usage for both SIM and eSIM lines is essential, especially during travel to avoid roaming charges. Check your device’s data usage settings to track usage by line, though tracking options may vary depending on your device and OS version.

3. Additional Charges and Roaming:
   Extra charges may apply when using your eSIM for data roaming. It’s best to consult your carrier about fees that may apply when using data services abroad on your Qoolline eSIM. While the flexibility of a Qoolline eSIM is convenient, be mindful of these possible limitations.

Conclusion:
With Qoolline eSIM, you can keep your primary number active for calls and benefit from data services simultaneously, as long as your device supports Dual SIM functionality. This setup is perfect for users who need to manage both personal and work lines or travel frequently. Just be aware of potential roaming fees and battery consumption when using multiple lines.