CoreESIM primarily provides mobile data services for internet access in Berlin. Most travel eSIMs are data-centric, enabling communication via VoIP apps such as WhatsApp, FaceTime, Skype, or Signal. While some specialized CoreESIM plans may include a local German number for traditional calls and SMS, this is not standard. Your existing home number will still receive calls and texts via your primary SIM, but international roaming rates may apply for answering. For most travelers, data-driven communication is sufficient and more cost-effective.
HELP CENTER
Does my CoreESIM support voice calls and SMS in Berlin, or just data?
Updated May 30, 2026
Was this answer helpful?
Related questions
Other answers in this topic that travelers found useful.
What's the best eSIM for data in Las Vegas, Nevada?
For robust mobile data in Las Vegas and across Nevada, an eSIM from SouthESIM is highly recommended. It leverages major networks like AT&T an…
Read answerHow much mobile data do I need for a trip to Nevada?
A typical 5-7 day trip to Nevada, including navigation, social media, and light streaming, usually requires 5-10 GB of mobile data. Consider…
Read answerCan I get 5G coverage with an eSIM in Reno and Lake Tahoe, Nevada?
Yes, SouthESIM eSIMs provide excellent 5G and 4G LTE coverage in Reno and the Lake Tahoe area, utilizing top local carriers. This ensures fas…
Read answerIs it better to use an eSIM or rely on hotel Wi-Fi in Nevada?
While many Nevada hotels offer Wi-Fi, an eSIM provides secure, reliable mobile data everywhere. You'll have constant connectivity for ride-s…
Read answerWhich mobile networks do eSIMs use in Nevada for reliable service?
SouthESIM eSIMs in Nevada connect to the robust networks of major US carriers like AT&T and T-Mobile. This multi-network access guarantees re…
Read answer