To: techxprt who wrote (25753 ) 9/13/1998 9:20:00 PM From: Mike Ankley Respond to of 50264
techxprt: Anyone with a phone is a potential user of Internet-Telephony. One need not have a computer or even direct access to the internet. How is this accomplished - via Internet Telephony Gateways. Gateways are the key to bringing Internet telephony into the mainstream. By bridging the traditional circuit-switched telephony world with the Internet, gateways offer the advantages of Internet telephony to the most common, cheapest, most mobile, and easiest-to-use terminal in the world: the standard telephone. Gateways also overcome another significant Internet telephony problem, addressing. To address a remote user on a multimedia PC, you must know the user's Internet Protocol (IP) address. To address a remote user with a gateway product, you only need to know the user's phone number. How Does It Work? Conceptually, Internet telephone gateways work like this: On one side, the gateway connects to the telephone world. It can communicate with any phone in the world. A phone line plugs into the gateway on this end. On the other side, the gateway connects to the Internet world. It can communicate with any computer in the world. A computer network plugs into the gateway on this end. The gateway takes the standard telephone signal, digitizes it (if it is not already digital), significantly compresses it, packetizes it for the Internet using Internet Protocol (IP), and routes it to a destination over the Internet. The gateway reverses the operation for packets coming in from the network and going out the phone. Both operations (coming from and going to the phone network) take place at the same time, allowing a full duplex (two-way) conversation. A number of configurations can be built from this basic operation. Phone-to-PC or PC-to-phone operation can take place with one gateway. Phone-to-phone PC operation can occur with two gateways. To offer international long-distance service using gateways, for example, an organization or service provider can host one gateway in each country. By bypassing the international connect charges -- even paying in-country long distance rates -- the configuration costs significantly less than traditional circuit-switched service Hope this clears things up a bit ... and BTW - many Egyptians have phones (over 3 million according to World Fact Book) so many potential current phone customers looking for monthly billing savings. Cheers Mike