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iCall – Unlimited Calls for FREE (US and Canada)Posted in Social Networking on 25 Mar 2009 |
 Written by Sky -Akash Tanna |
   (44 votes, average: 3.41 out of 5)  Loading ... |
Do you talk a lot on your cellphone ?!
Do you often run out of cellphone minutes by the end of the month ?!
Do you use an iPhone ?!
If yes, then iCall is just the App for you. iCall for the iPhone is a revolutionary new product that lets you make and receive free or low-cost phone calls anywhere you have a WiFi Internet connection.
This is a must have application and has a relatively better quality compared to other VoIP iPhone Applications for FREE.
All you need is a WiFi connection and you are ready to make Free Calls anywhere in US or Canada. This means, even if you’re in a cellphone dead zone (where there is no reception) but you have WiFi access, you can still make Calls !
*How VoIP works ?
The end user establishes a hi speed broadband connection, a router and a VoIP Gateway. Instead of a standard telephone line, the router sends the telephone calls over an Internet connection. The VoIP gateway, placed somewhere in direct proximity of the connected Internet converts the analog signals into digital format, which are further broken down into smaller chunks called ‘packets’, before sending it over the Internet, much like the way data is transmitted to and from the computer. These packets are sent to their final destination and instructions for bringing back into an understandable form are embedded in them. It then goes through a VoIP gateway where the packets are reconverted into the original analog format utilizing a PSTN(Public Switched Telephone Network), thereby routing the call to the number the caller has dialed blending old school technology and hi tech delivery in a seamless and instantaneous way.
*http://www.tech-faq.com/how-does-voip-work.shtml
