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Тelecommunications

everything related to telecommunications comments and opinions will be written in English

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  1. VoIP tricks and defenses

    Here you will find how to protect yourself from attacks by malicious people in the world of VoIP,  we will also offer you how to protect yourself from these people ;)  
    if you have questions about voip or you need something you can ask them here

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  1. USA Amateur Radio Operator List [Nov 2020]

    By Napster,   
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