5 VoIP Terms You Didn't Know About

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1. ATA � This term means analog telephone generator and it�s the device used to connect the standard phone in your home to digital data so it can be transmitted over the Internet. ATA is also referred to as an analog-to-digital converter. The analog signal from your phone is simply converted into digital data that will be transmitted on the Internet.

2. H.323 � this term defines the protocols used to provide audio-visual communication sessions on any packet network. H.323 is a system specification used to describe ITU Telecommunication Standardization Sector (ITU-T). The standard uses various codecs, that includes: video codecs (H.261, H.263, H.264), audio codecs (G.711, G.729, G.729a, G.723.1, G.726) and text codecs (T.140).

3. MGCP � The Media Gateway Control Protocol is another protocol used in the VoIP system. Also known as H.248 and Megaco, the MGCP deals with signaling and session management during a conference. This protocol is the result of combining other two protocols � the Internet Protocol Device Control (IPDC) and Simple Gateway Control Protocol (SGCP),

4. SIP - The Session Initiation Protocol is a standard for multimedia conferencing over IP. SIP is designed to manage sessions within a packet telephony network. SIP also deals with signaling, that allows information to be carried over the network.

5. Megaco - Megaco/H.248, the Media Gateway Control Protocol, is used between a Media Gateway and a Media Gateway Controller in a VoIP network.

About the Author

Tom Blanks, the author of this article, is a marketing consultant working at NobelCom Phone Cards

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