List of country calling codes - Wikipedia
ウェブ3 日前 · Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
ブロードバンドインターネット接続 - Wikipedia
ウェブ2024年5月19日 · 概略. 1980年代 の高速回線は、回線料金や接続料金が高価（月額数十万円以上）な、通信速度512kbpsから1.5Mbps程度・特殊なケースで6Mbpsから数十Mbps デジタル回線 （ 光ファイバー ）であったため、 大企業 や コンピューター 関連 企業 、さらには先進的な 大学 ・ 研究 機関が利用するものであった。 それ以外の法人・団 …
5G - Wikipedia
ウェブ3 日前 · Wireless network technologies. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are …
Intelligent transport systems (ITS) usage - ITU
ウェブ6 日前 · This Report addresses the usages of Intelligent Transport System (ITS) radiocommunication applications, such as vehicle-to-infrastructure, vehicle-to-vehicle, vehicle-to-pedestrian communications for traffic safety related and traffic efficiency applications as well as electronic tolling systems and automotive radars for collision ...
ITU - Resolutions and Decisions of the Council of the ...
ウェブ2024年5月17日 · In this issue. This publication contains the complete text of the Council’s Resolutions and Decisions. it also contains three appendices (numerical list of all Resolutions adopted by the Council since its creation, numerical list of all Decisions adopted by the Council since its creation and an analytical table).
APT Preparatory Group for ITU World Telecommunication ...
ウェブ2 日前 · 2.2 Working Group 2 (WG2): ITU-T Work Organization WG2 considers the activities related to the organization of work of ITU-T such as the structure of ITU-T Study Groups to be studied in ITU-T and TSAG. Proposed Terms of
ASTAP: Expert Group ITU-T Issues (EG ITU-T) | Asia-Pacific ...
ウェブ2024年5月18日 · ASTAP: Expert Group ITU-T Issues (EG ITU-T) Objectives: Identify high-level and strategic ITU-T issues of interest to APT members, especially in the issues related to ASTAP , where regional cooperation and collaboration is likely to be of benefit to the Asia-Pacific region;
AT&T - Wikipedia
ウェブ2 日前 · AT&T Inc. (with "AT&T" being an abbreviation for its former name, the American Telephone and Telegraph Company) is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [4] It is the world's fourth-largest telecommunications company by revenue and the largest …
Ainu people - Wikipedia
ウェブ2 日前 · The Ainu are an ethnic group comprising related Indigenous peoples who are native to northern Japan, including Hokkaido and Northeast Honshu, as well as the land surrounding the Sea of Okhotsk, such as Sakhalin, the Kuril Islands, the Kamchatka Peninsula, and the Khabarovsk Krai; they have occupied these areas known to them …
International Telecommunication Union (ITU) | Britannica
ウェブ2024年5月15日 · International Telecommunication Union (ITU), specialized agency of the United Nations that was created to encourage international cooperation in all forms of telecommunication. Its activities include maintaining order in the allocation of radio frequencies, setting standards on technical and operational matters, and assisting ...
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