A telephone is a device designed to conduct simultaneous transmission and reception of voice over a network. It is the most widely used telecommunications medium in the world since 1876. Since its ...

The Spirent Abacus 100 Analog Subscriber Generator, an analog call generator to test high-density analog voice devices and switches on a large scale. The need for analog testing is still high. With ...

The two-way transmission of voice over a packet-switched IP network, which is part of the TCP/IP protocol suite. The terms "IP telephony" and "voice over IP" (VoIP) are synonymous. However, the term ...

(1) (Voice Over IP modem) A device that converts Internet-based voice service from the cable or telephone company to the user's telephones. Officially called an analog telephone adapter. (2) (Voice ...

[Headsheez] found a way to get his home phone service for free. He’s using a set of tools that we’re familiar with to route service from a typical analog phone system (which involves the extensions ...

For the first 100 years of the telephone business, all telephone circuits were analog. They were designed around the characteristics and problems of analog current and were maximized for that use.

As of midnight on February 18, 2008, cellular telephone companies will not be required to provide analog service. While most wireless telephone users will not be affected by this transition (often ...

If we asked you to name Alexander Graham Bell’s greatest invention, you would doubtless say “the telephone”; it’s probably the only one of his many, many inventions most people could bring to mind. If ...