Internet Telephony called IP Telephony or voice over IP (VOIP) use TCP/IP and pocket switching to send voice transmissions over a private or public IP network. VOIP customers can make call from their computer or telephone by istallting a VOIP router or adapter between their cable or DSL modem and their computer or telephone. Web Conferencing is a virtual meeting conducted using a browser and web. Web Conferncning can save time and money and improve productivity by allowing participants at various geographic location to come together online to communicate. Deaf people have DSL modem for Video Phone, Purple P3 Video, and they have blackberry sprint and talk online with rely service and video. They can use any online their computer while they have blackberry (pager).
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