July 14, 2010
VoIP is Voice over Internet Protocol. Standard telephone lines are referred to as PSTN or the Public Switched Telephone Network. PSTN works on circuit switching. A good example of circuit switching is the old switchboard operator who would connect callers to receivers by the use of electrical circuits. VoIP is Packet Switching. Packet Switching consists [...]
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July 11, 2010
Growing numbers of hams are using VoIP, or Voice Over Internet Protocol, in combination with their radios for long-distance communication spanning hundreds or thousands of miles. They’re using the Internet as the relay between their base stations, handhelds and mobile transceivers. This is a guide to the four primary VoIP systems used by hams: EchoLink, [...]
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