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| voip terminology amp; concepts | |
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A Voice Over IP ( VoIP ) phone is an entity used to make Telephone calls over the Internet, or to leverage network wiring within an office for carrying phone conversations to a PBX. VoIP phones use one of several competing communication standards to send their calls through a network. VoIP is a way of taking the current method of talking (Analog Audio Signals) and adapting them to become Digital Data that can be transmitted over the IP-based networks such as private LANs or the Internet. There are many different ways this can be done using the following. 1. A computer application (often called a Soft Phone ): a very basic way to make a call all that is required is an internet connection, speakers, microphone (and/or headset) and a sound card. 2. ATA ( Analog Telephony Adapter ): this device plugs into the existing home or analog telephone, a computer and a LAN or Internet connection. The ATA acts as an analog-to-digital converter, the phone is then ready to make calls using VoIP technology. 3. IP Phones: Looks identical to a regular telephone but instead of connecting to the normal POTS phone line jack on the wall, it connects into a router or wall jack using an RJ-45 Ethernet connector, this then becomes a fully operational phone with all software onboard, provided by the switch or system. Typical protocols are normed protocols like SIP and H.323 , or proprietary ones as Skype . |
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