Redtea Mobile is the leading eSIM (embedded SIM) service and turnkey solution provider that enables Plug & Play Connectivity preloaded to devices and ensures Always-on Connectivity. As the device connectivity operator, we leverage eSIM technology and beyond to provide the last-mile solution for device connectivity and scalable connectivity solution for massive IoT.

In this hyper-connected world, billions of objects and devices will be connected worldwide across multiple mobile networks over the coming years. Redtea Mobile is in place to give devices the new cost-saving and practical answer of the last mille solution for an “Always-Connected” world.

We are looking forward to collaborating with device OEMs, chipset and module manufacturers, mobile operators and service providers across the world on scalable connectivity solution for massive IoT.

Why Redtea Mobile

A fully integrated solution

We deliver turnkey global connectivity solutions including global cellular data coverage, RSP (Remote SIM Provisioning) platform, eSIM terminal technology, eSIM modules, and eSIM based applications.

Experience in production

Our technology has already brought benefits to cellphones and an even a wider range of IoT applications, which can get your products to market faster.

Stay professional and focused

We are very concentrated on the deivce connectivity based on eSIM. We have developed an RSP platform which is compliant with GSMA eSIM standards and can extend our eSIM solution to non-eUICC equipped devices. We support mainstream chipsets and can work on Android, Linux, RTos, and COS, and is available for applications installed in TEE, eUICC, eSE, and iSSP (i.e. iUICC).


eSIM in IoT Applications: Internet of Vehicles (IoV)

The new era of the Internet of Things is driving the evolution of conventional Vehicle Ad-hoc Networks into the Internet of Vehicles (IoV). That we often mention “connected cars” means the car equipped with internet access. This allows the car to share internet access with other devices both insides as well as outside the vehicle.

In-car entertainment (ICE), or in-vehicle infotainment (IVI) are the names often given to the touchscreen interface in a car’s center console. ICE / IVI system is a collection of hardware and software in automobiles that provides audio or video entertainment. It originated with car audio systems that consisted of radios and cassette or CD players and now includes automotive navigation systems, video players, USB and Bluetooth connectivity, Carputers, in-car internet, and Wi-Fi. Once controlled by simple dashboards knobs and dials, ICE/IVI system can even include steering wheel audio controls and hands-free voice control.

eSIM in IoT Applications: Internet of Vehicles (IoV)

Redtea Mobile is supplying eSIM solutions for connected cars . Instead of inserting a “plug-in SIM card” in the car’s ICE/IVI system somewhere behind the dashboard, as was previously the case, the SIM is now securely embedded or integrated into the vehicle’s M2M SIM module. The solution is based on a secure virtual identity that is only activated after the vehicle is shipped. It allows a local subscription to be downloaded to the M2M SIM when required, then installed and activated.

Thus, this new generation of SIM cards is no longer tied to a specific country or mobile network operator. Instead of installing various SIM cards in the communication electronics of every vehicle, Redtea Mobile offers the flexibility of supporting multiple countries and regions and mobile network operators with a single SIM. As part of the service, Redtea Mobile takes on the responsibilities of the subscription manager, generating the subscription, ensuring secure download and monitoring the quality of the service.

Redtea Mobile shipped their Internet of Vehicle connectivity service to FAW X40 in March 2017, and to Dongfeng Fengshen AX4 in September 2017.

Connectivity-as-a-Service (CaaS)

Connectivity-as-a-Service (CaaS): The New Paradigm

eSIM is a disruptive concept that has potential to reshape the landscape of the industry. However, like all innovations, it takes efforts and time for the concept to be widely landed and to be fully appreciated by the community. This is the opportunity for Redtea Mobile, and why we propose to leverage eSIM technology with a turnkey solution. While shipping services, we constantly receive feedbacks and requirements from our clients and customers, which leads to the adoption of some “byproducts” that do not belong to standard eSIM but are still desirable. “Connectivity-as-a-Service” is one of such “byproducts” that was inspired from our evolving service, and undoubtedly makes it possible for a better or comprehensive connectivity experience.


CaaS, the Concept
“Connectivity-as-a-Service” is a paradigm that refers to the capability that ships plug & play  connectivity  and always-on connectivity to devices. CaaS should be an open service that exposes standard interfaces to device manufacturers and other third-party developers.

The devices mentioned above is broadly referred to any electronic devices that has a cellular chipset, including both consumer electronics and M2M devices.

Plug&play connectivity is referred to as the capability that enables a device to obtain cellular connectivity right after the device is powered on. This capability frees end users from inserting an active SIM card, joining a Wi-Fi Network, or connecting to an Ethernet cable to obtain network access.

Always-on connectivity is referred to as the capability that keeps a device 24/7 online. A device can be offline for various reasons, including but not limited to poor coverage, malfunction of a Wi-Fi hotspot, or even an overdue payment. CAAS offers

In terms of openness, we propose that CaaS should be designed as a standard utility service such as Bluetooth, GPS, and Wi-Fi. Users, APPs and other services can activate CaaS on demand, and benefit from the connectivity advantages mentioned above.

• Case Scenarios
CaaS for Redtea Roaming Service
By partnering with cellphone brands, we embed our eSIM technology in the handsets, and deliver end users with global roaming service, which loads local SIM profile to the handsets that are out of their home countries. Currently we are serving millions of customers for 9 cellphone brands.

CaaS has demonstrated its value from the following perspectives,

• Bootstrapping
There is a scenario for international travelers that their devices can be off the connectivity when arriving at destination countries: The international roaming of their home carriers might not have been activated ahead of the trip, it is also difficult to find and connect to a public Wi-Fi in some countries. The CaaS can bootstrap the network connectivity, which enables end users to get a short-term connectivity to send msg back to family and friends, and to purchase a local data package from our roaming APP, and get a long-term data connectivity.

• Global Data Package with adaptive SIM profile
A frequent international traveler has a demand on the data package that can dynamically and adaptively switch to a local carrier depending on the destination country. This requirement can be fulfilled with the equipment of CaaS, which allows a device to first upload its location from the CaaS channel, and over-the-air to retrieve the best-to-use local carrier profile.

• CaaS for Device Manufacturers
CaaS also has the potential for device makers to inspire innovations. As an example, Moto by Lenovo, utilizes CaaS for their “privacy protection” feature. When a phone is stolen or lost, the intruder will first disconnect wifi connectivity and eject the existing SIM card. To project user privacy to be attacked offline, Moto set a policy that automatically brings up CaaS connectivity by Redtea Mobile if a device is offline by sometime, and remotely lock or even erase the privacy data.

To recap,
• CaaS and eSIM complements each other, Caas further paves the road for eSIM adoption.
• We envision CaaS as a new paradigm for Cloud Computing which enables developers to customize and implement their own connectivity preferences, decide which carrier to use, what data package to start with, etc.
• Redtea Mobile is on the way of developing it, and we are ready to be the CaaS leader.

Ensure Always-on Connectivity with RSP Platform

Ensure Always-on Connectivity with RSP Platform

“Always-on Connectivity” is referred to as the capability that keeps a device 24/7 online. As we know, a device may go offline for several different reasons, including, but not limited to, poor coverage, Wi-Fi hotspot malfunction, the prohibition of permanent roaming when involving global roaming, or even an overdue payment.

The key for “Always-on Connectivity” service is “remote provisioning”. It contrasts with the traditional methods of pre-provisioning specific, fixed profiles into SIMs during manufacture, and is capable of downloading a SIM profile to an in-market SIM and can also potentially delete and rewrite profiles and switch between them. In addition, a bootstrap profile that is pre-installed in eSIM makes remote provisioning easier. If there is fault or problem, the eSIM reverts to this bootstrap profile, which can call home to download SIM profiles remotely again so you never lose the connection.