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Analog telephony adapter - Wikipedia, the free encyclopedia |
 | | The most common ATA box is a device with at least one Foreign eXchange Station (which includes a telephone jack) used to connect a conventional telephone, and an ethernet jack used to connect the adapter to the LAN. |
 | | The ATA communicates with the remote VoIP server using a VoIP protocol such as H.323, SIP, MGCP or IAX and encodes and decodes the voice signal using a voice codec such as ulaw, alaw, gsm, ILBC and others. |
 | | ATA's generally use the SIP protocol, and are manufactured by many companies including Cisco, Owera, Grandstream, Motorola and Siemens. |
| en.wikipedia.org /wiki/Analog_Telephony_Adapter (318 words) |
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