STJグループ（株式会社サンテレコムジャパン、株式会社STJレンテック） Product Lineup

"Marumo" (Comprehensive Mobile Business Support Service) is a unique BPO service from Santec Telecom Japan. It makes managing corporate mobile phones and smartphones much easier. It provides strong support for security enhancements and in case of loss. We offer operational support for BPO services aimed at corporate mobile phones. Dedicated staff will respond quickly, no matter where you are in the country. [Features] ■ Support via a free call number (incoming calls only) and a dedicated email address ■ Bulk management and operation with dedicated software ■ iOS repairs are also supported ■ Nationwide service ■ Dedicated staff provide consistent support ■ Immediate response for lost devices *For more details, please refer to the PDF document or feel free to contact us.

Do you have any concerns about managing business terminals? "Frequent configuration errors" "Spending too much time on inquiries" "Managing terminals is too cumbersome" Suntelecom Japan's original BPO service "MaruMoba" solves all of these issues. In this article, we will provide a detailed introduction on how MaruMoba's features, implementation benefits, and actual success stories can address terminal operation challenges. A must-read for those aiming to improve operational efficiency and promote DX. *For more details, you can view the related links. For further information, please download the PDF or feel free to contact us.*

MDM "OPTiM Biz" is an MDM developed by Optim Corporation and supports multi-device management. MDM (Mobile Device Management) is a system designed to efficiently manage mobile devices such as smartphones and tablets, enhancing security. Implementing MDM in the operation of smart devices within a company is a crucial point for preventing information leaks. 【Features】 ■ No server setup required ■ Centralized management of devices ■ Multi-device support ■ Device lock in case of loss or theft ■ Automatic checks for security violations ■ Restrictions on non-business applications *For more details, please refer to the PDF document or feel free to contact us.

To efficiently manage and secure mobile devices necessary for business, the MDM solution is recommended. MDM refers to services or software that centrally monitor and manage mobile devices. In this article, we will clearly explain the necessity, functions, and implementation points of MDM. *For detailed content of the column, please refer to the related links. For more information, please check the PDF materials or feel free to contact us.*

MDM (Mobile Device Management) is effective for managing and monitoring corporate smartphones and mobile phones. In addition to device management and security enhancement, MDM has convenient features, among which the "app distribution feature" is very helpful for improving the operational efficiency of corporate smartphones and preventing personal use. In this article, we will explain the "app distribution feature" of MDM and also introduce the convenient feature "App Catalog" of our MDM product, 'OptimalBiz.' *For detailed content of the column, you can view it through the related links. For more information, please refer to the PDF materials or feel free to contact us.

MDM (Mobile Device Management) is effective for managing and monitoring corporate smartphones and mobile phones. This time, we will introduce "Restrictions," which is suitable for managing iOS devices, as one of the main features of MDM. "Restrictions" help unify the operational policies of corporate smartphones, enhance security, and prevent personal use. In this article, we will explain why to use restrictions with MDM and how users can comfortably utilize them. Please be sure to read until the end. *For detailed content of the column, you can view it from the related links. For more information, please feel free to contact us.

"STJ Fault Support (i) 1 Year" is a corporate mobile phone and smartphone insurance that fully covers repair costs for smartphone accidents such as water damage, breakage, and malfunction. *Devices purchased from Santelecom Japan are eligible for coverage. Repair costs for iOS devices (iPhone, iPad) due to malfunction, breakage, or water damage are covered up to twice a year. With a contract for Santelecom Japan's BPO services, you can rest assured during the repair process. The repaired items will be ready for use immediately upon delivery. 【Features】 ■ Repaired items are returned with kitting ■ Custom repair flow can be established for your company ■ Management is possible even if the contracted communication providers are different ■ Coverage for water damage, breakage, and malfunction *For more details, please refer to the PDF document or feel free to contact us.

"MaruMoba Lite" is a service that allows you to delegate all the hassle of purchasing, setting up, and repairing your device. It also provides solid coverage for issues like screen cracks and water damage without any additional contracts. The monthly fee is simple, and there’s no need to pay extra for insurance. It reduces the burden on your staff while ensuring peace of mind in case of emergencies. This plan is perfect for those who want to make their in-house mobile operations "easier" and reduce management hassle. [Services] ■ iPhone repair procedure agency service ■ Simple kitting service (paid) *For more details, please download the PDF or feel free to contact us.

In today's business environment, smartphones have become an indispensable presence, and device malfunctions or damage pose a significant risk that can directly lead to business interruptions. The prices of smartphones have been rising year by year, and it is not uncommon for models to exceed 100,000 yen. This article provides a detailed explanation of the necessity and benefits of smartphone insurance for corporations. Additionally, we will introduce recommended insurance services and operational methods, so please be sure to read to the end. *For detailed content of the column, you can view it in PDF format. For more information, please feel free to contact us.*

In December 2025, the "Smartphone Software Competition Promotion Act (commonly known as the New Smartphone Law)" was enacted. At first glance, this law seems to be related to "general users" and "app development companies," but it may actually have implications for the operation of corporate smartphones as well. In this column, we will clearly explain "What is the New Smartphone Law?", "What impact does it have on corporate smartphones?", and "Examples of utilizing MDM (OPTiM Biz)." *For detailed content of the column (such as blogs), you can view it through the related links. For more information, please download the PDF or feel free to contact us.

"STJ Rental Wi-Fi" is a rental Wi-Fi service for businesses that supports high-capacity communication. With a simple monthly plan design, it is ideal for short-term use at events and exhibitions. There are no administrative fees or equipment costs, and there are no usage limits based on dates. Thanks to cloud Wi-Fi technology that automatically connects to three carriers (docomo/au/SoftBank), it provides a communication environment suited to the location. Remote work and video streaming can be done smoothly. 【Features of the newly launched BCP plan】 ■ Low price └ 1,000 yen/month for usage up to 1GB └ 1,500 yen/month for usage up to 3GB ■ Provides stable communication with automatic connection to three carriers ■ Immediate use available when needed ★ A no-commitment 100GB plan (4,000 yen/month) is also available! *For more details, please refer to the materials. Feel free to contact us with any inquiries.

Have you ever used a pocket Wi-Fi that utilizes the currently popular cloud Wi-Fi? At Santelecom Japan, we offer "STJ Rental Wi-Fi" for corporate customers. Although I usually guide customers, I wanted to verify whether "cloud Wi-Fi really connects comfortably" and "whether the switching is smooth even while moving," so I decided to use STJ Rental Wi-Fi myself for a few days. This time, I will honestly report on my experience, including both the good points and the concerns I had. *For more detailed information, you can view the related links. For more details, please download the PDF or feel free to contact us.*

In the construction industry, rapid information sharing and a reliable communication system are essential for site management. Particularly in understanding site conditions, responding to emergencies, and coordinating among stakeholders, the stable operation and management of mobile devices serve as the foundation for executing tasks. Delays in response due to loss or malfunction can lead to project delays and decreased productivity. Our service "MaruMoba" comprehensively supports the management and operation of corporate mobile phones and smartphones, facilitating smooth business operations on-site. 【Usage Scenarios】 - Information sharing between sites - Instructions for the allocation of materials and personnel - Establishing a communication system for emergencies - Coordination with personnel while on the move 【Benefits of Implementation】 - Improved decision-making speed on-site - Reduced communication loss - Enhanced operational efficiency

In the service industry, smooth communication with customers and the accuracy of reservation management are key to performing operations. Particularly, as the volume of business conducted through mobile devices increases—such as checking and changing reservations and responding to customer inquiries—there are often challenges related to device management, security measures, and responses in case of loss. These issues can lead to decreased operational efficiency and lower customer satisfaction. "MaruMoba" is a BPO service that comprehensively supports the management and operation of corporate mobile phones and smartphones, contributing to the resolution of these challenges. 【Usage Scenarios】 - Responding to inquiries during reservation acceptance and changes - Accessing and managing customer information - Checking reservation status from outside 【Benefits of Implementation】 - Streamlining reservation management operations - Accelerating customer response times - Reducing the operational burden on employees

In educational institutions, the smooth distribution of teaching materials and the sharing of information among students and staff are emphasized. In particular, stable operation of mobile devices and a support system for emergencies are essential for quick access to the latest materials and the use of learning support tools. If there are many inquiries about lost devices or operations, it may hinder educational activities. "Marumo" comprehensively supports the management and operation of corporate mobile phones and smartphones, aiding the use of IT in educational settings. 【Usage Scenarios】 - Digital distribution and access management of teaching materials - Communication and information sharing among students and staff - Use of learning support applications - Prompt response in case of device loss or malfunction 【Effects of Implementation】 - Increased efficiency in material distribution and improved accessibility - Reduced management burden on staff - Equalization of learning opportunities for students - Ensured continuity of educational activities through prompt trouble response

In the insurance industry, rapid information gathering and customer response on-site are required, making the stable operation and security of corporate mobile phones crucial. For assessors to share accurate information and make quick decisions while on the go, it is essential to have measures in place for lost or malfunctioning devices, as well as prompt resolutions to user inquiries. To address these challenges and support improvements in operational efficiency and customer satisfaction, "Marumo" provides the optimal solution. 【Usage Scenarios】 - Taking and sharing photos and videos on-site - Secure access to customer information - Responding to inquiries while in transit 【Benefits of Implementation】 - Accelerated assessment operations - Smoother information sharing - Increased customer satisfaction

In the financial industry, maintaining a rapid and secure communication environment is essential for handling customer inquiries and managing confidential information. In particular, responding to inquiries from remote locations and ensuring quick recovery in the event of loss or malfunction are critical for customer satisfaction and business continuity. Inadequate management systems can increase the risk of information leaks and potentially undermine customer trust. "MaruMoba" comprehensively supports the management and operation of corporate mobile phones and smartphones, contributing to the resolution of these challenges. 【Usage Scenarios】 - Responding to customer inquiries from remote locations - Communicating with staff while on the move - Sharing information in emergencies 【Benefits of Implementation】 - Faster and improved quality of customer responses - Reduced risk of information leaks - Enhanced operational efficiency

In the real estate industry, the rapid and accurate sharing of property information leads to improved customer satisfaction and increased operational efficiency. Particularly in on-site property verification and customer interactions, utilizing smartphones and corporate mobile devices for information sharing is essential. However, challenges such as device management, security measures, and responses to loss can become burdensome in operations. Marumo supports the management and operation of mobile devices in real estate business by addressing these challenges. 【Usage Scenarios】 - Taking and sharing property photos and videos on-site - Providing property information to customers - Centralized management of property information within the company - Responding to inquiries while on the move 【Benefits of Implementation】 - Reduction of missed opportunities through real-time sharing of property information - Faster customer responses and increased satisfaction - Alleviation of the burden of mobile device management tasks - Ensuring business continuity through rapid recovery in case of loss or malfunction

In the manufacturing production environment, there is a demand for information sharing between sites, progress verification, and rapid transmission of work instructions. In particular, real-time situational awareness and quick responses to sudden troubles are essential for the stable operation of production lines. However, establishing a communication environment that meets the diverse needs of the site and managing and operating devices can involve significant effort and costs. Our service "MaruMoba" offers management and operation of corporate mobile phones and smartphones as a BPO service, supporting the resolution of these challenges. 【Usage Scenarios】 - Work instructions and progress verification on the production line - Information sharing among on-site staff - Establishing a communication system for emergencies - Streamlining inventory management and quality checks 【Benefits of Implementation】 - Smoother communication on-site - Improved production efficiency - Reduced opportunity loss through rapid decision-making - Decreased management workload

In the logistics industry, real-time understanding of delivery status and smooth collaboration with drivers are crucial for carrying out operations. Particularly in delivery tracking, accurate location information and rapid information sharing directly contribute to improving customer satisfaction and enhancing operational efficiency. Insufficient information sharing and the complexity of device management can increase the risk of delays and misdeliveries. The comprehensive mobile business support service "Marumo" assists in the management and operation of corporate mobile phones and smartphones, contributing to solving these challenges. 【Usage Scenarios】 - Real-time tracking of delivery vehicles - Ensuring communication methods with drivers - Rapid information sharing in emergencies 【Benefits of Implementation】 - Optimization of delivery routes - Reduction of delay risks - Accurate information provision to customers

In the medical field, there is a demand for rapid and secure responses when referencing patient records and sharing information. Particularly during information access while out and about, as well as in emergency situations, it is crucial to manage the risk of information leaks and to prevent business interruptions due to loss or malfunction. In response to these challenges, "Marumo" provides BPO services for the management and operation of corporate mobile phones and smartphones, supporting healthcare professionals in creating an environment where they can focus on their work with peace of mind. 【Usage Scenarios】 - Referencing patient records from outside - Information sharing in emergencies - Business communication while on the move 【Benefits of Implementation】 - Strengthening information security - Improving operational efficiency - Rapid response in case of loss or malfunction

In the food service industry, accurately and quickly receiving customer orders directly contributes to improving service quality. Particularly during peak times, missing orders or delays in information sharing among staff can lead to decreased customer satisfaction and lost opportunities. Additionally, in busy store situations, it is not uncommon to be overwhelmed by the need to address lost or malfunctioning devices. "MaruMoba" supports the management and operation of corporate mobile phones and smartphones, contributing to solving these challenges. 【Usage Scenarios】 - Order reception and communication within the store - Management of takeout and delivery orders - Information sharing among staff 【Benefits of Implementation】 - Faster processing of orders and improved accuracy - Smoother communication among staff - Reduced downtime due to quick recovery from loss or malfunction

Have you ever experienced your iPhone suddenly becoming unresponsive or not turning on? In such situations, a "force restart" can be helpful. This article clearly explains the cases when a force restart is necessary on an iPhone, important points to consider, and the operation method. Additionally, for those who find it difficult to understand the operation method through text alone, we also introduce a video explaining the force restart available on the Santec Telecom Japan YouTube channel "STJCHANNEL." If you want to follow along with the actual operation, please refer to it. *You can view the detailed content of the article through the related links. For more information, feel free to contact us.

Corporate smartphones and mobile phones continue to be managed even after they are arranged for employees. There are actually many detailed tasks involved, including collection, ledger confirmation, initialization, MDM verification, kitting, and delivery. Although each task may seem small, they can accumulate and take up a lot of time in device management. Therefore, this time we will closely follow the field of Santelecom Japan's "Maru-Moba" and take a look at the behind-the-scenes process until the devices are handed over to the next users. *For detailed content of the article, please refer to the related links. For more information, feel free to contact us.