There are Some voip calling software through which you can make free voip calls, video calls and automatic messaging. Many of us who have used these programs before, knows that these are the major market holders and popular voip service providers. They have their own market share and can use at ease.

1 – iCall
It is one of apllications voip applications that has been granted by apple to operate on the iphone platform, one can find in apple store. It is a service operating from the voip software on your personal computer, transmitting the internet signal to your iphone. Icall is launching its version 7 with new and upgraded characteristics, developed to enter the war of multi messengers world. It is compatible with all WiFi networks around the globe. Wiht iCall, you can send SMS and make free calls to any destination, any network of the U.S. and Canada.

2 – Fring
Fring is a nice application with a couple of really cool & attractive iPhone features such as video calls, and free calls between fring users. As most other applications of the sort, it operates on the voip principle, but what distinguishes fring is that it is programmed. Fring is a mobile application that lets you make free voice calls, free video calls (one way) using gtalk, msn menssengers etc. and live im chats entirely from your iphone. Fring is the new cell phone application that works with iphone and android for live video calls.Fring is the ultimate application to use if what you want is to communicate by ways of the numerous instant messaging services that are accesible.

3 – Skype
From Skype Voip Software you can make free calls to other Skype users.. Additional to this, it is compatible with GPRS, 3G networks and Wifi. Skype is a free application service launched in 2003, which enables you to communicate with other skype users free of fee: it enables you to send and receive calls .If youre thinking about using this service for business uses to call internationally, then skype is an absolutely recommended program. putting up skype is one of the easiest activities that a person with a pc and iphone can do. Skype is a voip service provider, that enables user to communicate with each other similar to using traditional dial service.

4 – Truphone
Truphone works in an identical way as skype for mobile, an application that permits you to make free calls from iPhone to other Truphone users, Skype, GTalk. This application lets you make free phone calls to other truphone users and numerous others.

5 – Vopium
Vopium, an emerging mobile voip service permits users to enjoy and save up to 40 90% on voip calls. With this free iPhone application one can make 30 minutes of free voip calls and sends SMS to all 30 local and international numbers.

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