International Telecommunication Union – Telecommunication | ITU-T Kya hai ?

International Telecommunication Union - Telecommunication

International Telecommunication Union – Telecommunication (ITU-T) अंतरराष्ट्रीय दूरसंचार संघ- दूरसंचार (International Telecommunication Union – Telecommunication) (मानकीकरण क्षेत्र) सबसे पुराना अंतर …

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