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  6. IIJ to Offer eSIMs with Voice Call Function for Mobile Service Giga Plan Type A for Customer Use

IIJ to Offer eSIMs with Voice Call Function for Mobile Service Giga Plan Type A for Customer Use

Introduction of eKYC enables everything from application to start of service to be completed online, on the day of the application at the earliest

September 15, 2022
Internet Initiative Japan Inc.

PDF [471KB]PDF / Japanese

TOKYO - September 15, 2022 - Internet Initiative Japan Inc. (TSE Prime: 3774), one of Japan's leading Internet access and comprehensive network solutions providers, today announced plans to begin offering eSIMs with voice call function (hereinafter, "Voice eSIMs") on its MVNO services for individual customers "IIJmio Mobile Service GigaPlans" Type A (au network), beginning October 25, 2022. In addition, IIJ will introduce eKYC (online know your customer) along with the launch of the Voice eSIMs.

eSIMs are embedded SIMs for smartphones and other devices that allow users to remotely download the profiles needed to use telecom services (SIM profiles). Without having to insert the physical SIM card to devices, users can readily start using the telecom services just by downloading profiles to their eSIM-compatible devices.

While it takes a minimum of three to four days for conventional physical SIMs to reach users and enable telecom services if the applications for SIMs with voice call function were sent through the IIJmio website, Voice eSIMs will allow users to use telecom services on the day of application at the earliest because they require no delivery of SIM cards and identity verification procedures are completed online with the eKYC that has been introduced. For reference, IIJ employs “LIQUID eKYC” offered by Liquid, Inc. for the eKYC.

Recently, with increasing demand to use several SIMs on a single device for purposes such as saving communication charges and backup in case of communication failure, the usefulness of eSIMs, for which contract procedures can be completed easily in a short period of time, is attracting renewed interest. IIJ has been offering eSIMs dedicated to data transmission service and will start offering of Voice eSIMs in response to the strong demand to voice calls as a backup line. Simultaneous use is available with combining Voice eSIMs for Type A (au network) and conventional physical Voice SIMs for type D (NTT DOCOMO network) .

  • (*)In case of simultaneous use, mobile network settings are needed for each eSIM/SIM.

Service launch date

October 25, 2022

Target service

IIJmio Mobile Service Giga Plan Type A (SIM profile with voice call function)

Basic monthly fees (tax included)

Fee for a Voice eSIM is the same as SIM with voice call function (physical SIM).

Data limit 2 GB 4 GB 8 GB 15 GB 20 GB
Voice eSIM
(data transmission + voice call function/Type A)
JPY850 JPY990 JPY1,500 JPY1,800 JPY2,000
  • (*)Monthly fee for data-dedicated eSIMs for type D (NTT DOCOMO network) is different from Voice eSIMS.

Other fees (tax included)

Initial fee JPY3,300
SIM profile issue fee JPY220
Universal service fee JPY2.2 per month
Voice call charges JPY11 for 30 seconds
mio discount A discount of JPY660 per month is available when bundled with IIJmio Hikari.(*)
  • (*)Regardless of the number of GigaPlans contracts, JPY660 discount is applied to 1 IIJmio Hikari line.

How to sign up

  • Sign up for an account on the IIJmio website.
  • Purchase an IIJmio Welcome Package at electronics stores, convenience stores, or other retail locations, and use it to sign up through the IIJmio website.

Sign up for the service from the IIJmio service website and follow the identification procedures to get an activation code (a barcode) on the member site (for eSIM users). Read the barcode with an eSIM-equipped device to download the profile and enable data transmission.

  • (*) In case of MNP transfer, separate procedures to start using the network will be required.

IIJ will continue to expand new service offering with the aim of improving customer satisfaction and convenience.


LIQUID eKYC is a service offered by Liquid, Inc. to provide various identification methods to confirm that a user is an actual person as identified, which is required in identity verification procedures for concluding contracts or opening an account online. It enables identity verification procedures to be completed online by using a driver license and other identification documents the customer has, improving convenience for customers.

About IIJ

Founded in 1992, IIJ is one of Japan's leading Internet-access and comprehensive network solutions providers. IIJ and its group companies provide total network solutions that mainly cater to high-end corporate customers. IIJ's services include high-quality Internet connectivity services, systems integration, cloud computing services, security services and mobile services. Moreover, IIJ has built one of the largest Internet backbone networks in Japan that is connected to the United States, the United Kingdom and Asia. IIJ was listed on the Prime Market of the Tokyo Stock Exchange in 2022.

The statements within this release contain forward-looking statements about our future plans that involve risk and uncertainty. These statements may differ materially from actual future events or results.

For inquiries, contact

IIJ Corporate Communications

  • (*) All company names and service names used in this press release are the trademarks or registered trademarks of their respective owners.

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