Review products and coverage
Review the country, number type, calls, SMS, data and validity, then ask about pricing.
Connection made easy, from start to finish.
From product selection and device/eligibility checks to installation and line management. We distinguish service-readiness information from actual activation procedures.
What is an eSIM?
An eSIM is a digital SIM that downloads a carrier profile to a chip inside your phone. Instead of swapping a physical SIM, you install a profile on a supported device. Device, sales-region and carrier support requirements must be checked separately.
Data-only and numbered products
Data-only products provide mobile data connectivity and do not include a carrier phone number, voice or SMS. Calling and messaging on numbered products vary by issuance country and eligibility. Data coverage and countries where numbers can be issued may differ.
Check device and eligibility
Verify eSIM support and carrier unlocking with the manufacturer. Eligibility for individuals/businesses and residence/nationality requirements are subject to partner review.
Identity verification and agreement
Complete the required identity checks on the approved provider's screen. Confirm the final total, taxes and cancellation terms before applying.
Check payment and activation statuses
Payment and activation are checked separately. Pending review does not mean activation; failures are subject to the partner's cancellation and refund policy.
eSIM installation and line settings
Use an official supported installation link or manual entry. You will not be asked to scan a QR code on the same phone.
Use, top up and manage
Check installation and network connectivity separately. Choose default voice, SMS and data lines for dual SIM, then review usage and expiry.
Check before installing.
Check eSIM support and carrier-unlock status with the manufacturer. On the same phone, use an official installation link or manual entry. You can use QR installation if another screen is available. The current test QR code is not for actual installation.
Installing an eSIM profile and activating the mobile network are separate statuses. After actual activation, choose your default voice, SMS and data lines for dual SIM, and follow official instructions for plans requiring roaming. For supported calls and SMS, select the line in your phone's default apps.
In-app calls and SMS versus default apps
The buttons open your phone's default call or messaging app. They do not count as a connected call or delivered SMS. Direct calling and messaging in ONRING require official SDK/media integration, SMS APIs, rights for the number and iOS/Android requirements to be confirmed. These integrations are currently being prepared.
Frequently asked questions
Can a Korean 010 number be used for PASS or financial identity authentication?
A Korean 010 number does not automatically support every identity-verification service. Ordinary SMS reception and PASS/financial authentication are separate features; subscriber eligibility and partnership scope must be checked.
Can I apply and install on the same phone?
We will guide you through partner-supported official links, native installation or manual entry. QR codes can be used with another screen. Current test QR codes and activation codes cannot be used for actual installation.
Are business contracts and API integrations available?
We accept individual and business inquiries, including enterprise API deployment. Availability and terms will be provided after reviewing contract eligibility, countries, registration requirements, minimum commitments and official API rights.