Through a technique called Internet linking, ham radio operators are harnessing the immediacy and portability of radio communication to the global reach of the Internet. Today's radio amateurs are using the Internet as the relay between their radio base stations, handhelds and mobile transceivers for long-distance communication, spanning thousands of miles. The ARRL has released a second edition of VoIP: Internet Linking for Radio Amateurs, the complete guide to several of the most widely used Voice over Internet Protocol (VoIP) systems used by today's radio amateurs, with particular attention to EchoLink and the Internet Radio Linking Project (IRLP).
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