October 28, 2015

DOCOMO to Launch eSIM Solution in Brazil for docomo M2M Platform Corporate Users
—Will support global IoT implementation by Japanese firms—

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Products & Services

TOKYO, JAPAN, October 28, 2015 --- NTT DOCOMO, INC. announced today its agreement with Telefonica Brasil S.A. (Vivo) to launch an embedded subscription identity module, or eSIM, which will enable machine-to-machine (M2M) devices to work on Vivo network.

The eSIM will be available for enterprises that use the docomo M2M Platform, a globally adopted platform that integrates the mobile networks of DOCOMO and operators in other countries.

DOCOMO is Japan's first mobile provider to provide an eSIM solution to a mobile operator outside of Japan.

DOCOMO's eSIM enables M2M devices to use a single embedded SIM with a phone number which can be changed over-the-air to certain mobile operators, allowing companies to remotely manage connectivity with mobile operators without having to replace the SIM cards in their devices.

Permanent use of international roaming is forbidden in Brazil, so connected automobiles, construction machinery, etc. exported from Japan to Brazil have had to switch to SIMs of local operators. DOCOMO's eSIM now will make it easier for Japanese exporters to use the Vivo network in Brazil without switching SIMs.

DOCOMO's eSIM is based on specifications established in December 2013 by the GSM Association (GSMA), the world's leading association for mobile operators. DOCOMO has started offering eSIM as a M2M solution for corporate customers using the docomo M2M platform in Japan from June 2014.

Yanmar Co., Ltd. ("Yanmar") was established in 1912 and in 1933 became the world's first manufacturer to develop a practical small diesel engine.Yanmar is scheduled to deploy DOCOMO's eSIM in industrial machinery that it plans to export to Brazil from the next fiscal year.

The solution will enable Yanmar to directly monitor machinery for diagnostics and maintenance, theft prevention and other remote information monitoring services.

Going forward, DOCOMO will continue to provide support to our corporate customers on their global expansion through the deployment of the eSIM solution.


NTT DOCOMO provides innovative, convenient and secure mobile services that enable smarter living for each customer. The company serves over 67 million mobile customers in Japan via advanced wireless networks, including a nationwide LTE network and one of the world's most progressive LTE-Advanced networks. DOCOMO is a leading developer of a 5G network that it plans to deploy by 2020, as well as network function virtualization (NFV), NFC infrastructure and services, emerging IoT solutions, and more. Outside Japan, the company is providing technical and operational expertise to seven mobile operators and other partner companies, and is contributing to the global standardization of all-new mobile technologies. DOCOMO is listed on stock exchanges in Tokyo (9437) and New York (DCM). Please visit https://www.docomo.ne.jp/english/.

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