The future of telephony is Internet Protocol (IP). Instead of sending your calls over the public switched telephone network (PSTN), a handful of wholesale phone companies are breaking your voice into syllable-sized packets and sending them over a lattice of networks that resemble and include the Internet.

The result: Big Savings.
The following article was written by Chad White, Technology Investor, Sep 2000.
"Customers save between 10% and 50% depending on the route that the phone companies take when they use the IP carriers to deliver their international calls rather than PSTN carriers. Why are IP calls cheaper?

First, IP can send at least six times more calls over the same bandwidth as a single PSTN call. IP calls are compressed and on average need only 10 kilobits per second. Second, IP software uses bandwidth better when sending voices. The algorithms used to encode voice into IP adapts to the conversation. If you speak less often, less bandwidth is used.

In contrast, the public switched telephone network does not adapt. It dedicates the entire expensive bandwidth of a two-way circuit to a conversation. If you are not using the whole bandwidth - pausing, hesitating, and listening - it goes to waste. Add up all the spaces and there is lots of waste - at least 65%. You are paying for silence every time you call Aunt Bertha in Timbuktu.

The savings with voice over IP (VoIP) has phone companies handing off their international long distance calls to dedicated IP carriers. Last year, IP carrier revenue grew 500% to $500 million, says the IDC. It will increase 120%
per year to $1.19 Billion in 2003:

Imagine voice as Internet data.
Today, your PC can browse five websites, receive email and listen to high-fidelity music - all simultaneously while online. But voice? You have to hang up and dial again. Dumb.

Tomorrow, you'll stay on. Answer multiple calls, conference them together, have them find you wherever you are…. All the while you are still browsing five websites, emailing.... It will be cramped on a dialup line, but on a DSL or a cable modem? A snap! At some point, when we're all on one gigantic broadband network, the world's entire Internet traffic, phone traffic and video traffic will pass by our doors, ready to be plucked off for our pleasure, our business or our edification.

Life will pass us by. But it will be Everyone's lives. It will be there for instant participation. Such is the ultimate power of IP. "

It is obviously a large issue. Good voice quality, few (if any) dropouts and high availability (dial tone is always there) must accompany and IP based telephony solution. The Internet connection you are using to read is an example of a network not designed to provide adequate quality of service for voice. Private IP networks have much better chance (currently) of delivering adequate quality of service.

Digital Service Group Inc., a leading provider of Internet Telephony Solutions announces a series of revolutionary Internet telephony products;
IN-Call LAN, IN-Call Dialup, IN-Call USB Phone, IN-Call Button, and IN-Call Gateway. All IN-Call Products will talk to each other for free! Digital Service Group, Inc. is based in Los Angeles, CA with sales worldwide.

IN-Call Dialup/LAN works with any ISP to place VoIP calls to any phone (no PC needed) in the world. Priced at US $189 per unit, IN-Call Phone will be available through Digital Service Group, Inc.'s growing new partners, existing international
distributors and worldwide OEM partners.

DSG Inc. is one of few manufacturers in the world capable to present the VoIP Dialup/LAN device and also make it compatible with other VoIP products of IN-Call System. No matter where you are in the world, by using IN-Call Phone, you will immediately bypass the expensive long distance telephone carrier and enjoy free calls (IN-Call Phone to IN-Call Phone) or discount rate calls (IN-Call Phone to regular Phone).

COMPARISON TABLE

IN-Call USB Phone, is a unique PC-phone that provides a telephone interface with which users can place VoIP calls worldwide. User can be anywhere, at any PC, just use your USB phone to call any phone in the world while enjoying the best calling rate.

IN-Call Button, has unique features intergrating telephone and web. Users can access the Call Button on your website and by clicking on the Call Button banner will make a Free International call to your office. Receiving party will pay low discount calling rate. IN-Call Button replaces the expensive international toll free calls.

An E-Commerce owner now can have his customers click on the website and speak to a live representative. IN-Call Button makes voice calls possible through the Internet to a Customer-Support Call Center located anywhere, even at no cost (with IN-Call Gateway).

IN-Call Gateway series are excellent solutions for companies to reduce or eliminate the long distance phone charges by providing phone-to-phone communication service through IP network by bridging the traditional circuit-switched telephony world and Internet/Intranets. IN-Call gateway also provides a wide range of features for the Internet Telephony Service Provider (ITSP). This includes advanced billing
support and channel management. With user-friendly Interface design, the Digital Service Group's gateways provide convenient system configuration and maintenance. The ITSP administrators can easily monitor each channel in real-time traffic and duration. With all superior managerial functions and high quality voice transmission, IN-Call Gateway series are the best solutions for ITSP who will be interested in Internet telephony services and become IN-Call Partners. Digital Service Group, Inc.'s Internet Telephony Network has Gateways located worldwide. With the currently rapid growth in the number of gateways and users, Digital Service Group, Inc. is able to offer the lowest rates in IP Telephony.


Digital Service Group, Inc.'s new IN-Call System/Products have:

(1) Best voice quality.
(2) User friendly features.
(3) Reasonable price and rate.
(4) Flexible in meeting the user's needs.
(5) H.323 compatibility.