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  5. Radios, walkie-talkies, and intercoms
  6. What is an IP radio? An introduction to the communication mechanism, recommended models, and usage scenarios.

What is an IP radio? An introduction to the communication mechanism, recommended models, and usage scenarios.

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STJ Rentec Co., Ltd.

last updated:Jun 18, 2026

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)
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)
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If you are considering the introduction of IP radios, please use this as a reference!

IP radios are wireless devices that use mobile phone communication networks or internet connections to make calls. Unlike conventional radios, they do not require a license or registration, making them easy to use. Additionally, they allow for nationwide communication in Japan, and since the call charges are flat-rate, costs can be kept low. This page will explain the communication mechanism of IP radios, their types, advantages, disadvantages, recommended models, and usage examples. *For detailed content of the article, please refer to the related links. For more information, feel free to contact us.*

    Radios, walkie-talkies, and intercoms
活用シーンのご紹介1.PNG

What is an IP radio? An introduction to the communication mechanism, recommended models, and usage scenarios.

活用シーンのご紹介1.PNG
活用シーンのご紹介1.PNG 活用シーンのご紹介2.PNG 活用シーンのご紹介3.PNG
  • Related Link - https://rentec.stjg.jp/stj-column/what-is-ip/
  • Special site - Product/service details - https://pr.www.ipros.com/suntelecom/product/

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[2025 Latest Edition] STJ Rentec Rental Comprehensive Catalog

[2025 Latest Edition] STJ Rentec Rental Comprehensive Catalog

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WAVE broadband wireless device "TLK100"

WAVE broadband wireless device "TLK100"

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Discontinued for sale; rental available - IP transceiver 'IP502H'

Discontinued for sale; rental available - IP transceiver 'IP502H'

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IP transceiver 'IP501M'

IP transceiver 'IP501M'

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Company information

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)

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)

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The STJ Group (Santelecom Japan Co., Ltd. and STJ Rentec Co., Ltd.) specializes in the sales, rental, and maintenance of wireless equipment and related solution products. (e.g., commercial wireless devices, IP wireless devices, license-free specific low-power transceivers, solutions such as cameras and relay devices) ~List of Locations~ ■ Hokkaido Sales Office / Experience Center Sapporo ■ Tohoku Sales Office ■ Kanto Sales Office (Head Office) / Experience Center Tokyo ■ Kansai Branch / Experience Center Osaka ■ Kyushu Sales Office Additionally, the group company Santelecom Japan Co., Ltd. also engages in mobile corporate business. With a track record of implementation in major corporate BCP, we offer BPO services where Santelecom Japan serves as the customer contact point, providing support for bulk management of devices, as well as assistance for malfunctions and losses. We can also provide comprehensive support proposals, including consulting on corporate communication environments and suggestions for office products and business improvement tools.

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