Fring
Fring is truly useful and innovative service. It allows you to send instant messages make VOIP calls toward applications such as Skype and Google Talk from your cell phone.
Using Fring is very simple. All you have to do is go to the official site and type in the model of your phone, your phone number and a few other pieces of information. After a few seconds you will receive an SMS message with the link for downloading Fring. Once installed, all you have to do is open it, type in the number you want to call and that's it. Fring is available for various models using the Symbian operating system (the full list is on the website).
The only downside of Fring is that if you don't have a service plan that allows you a flat-rate connection, you will pay the regular connection rate (according to whoever your provider is). More details are available on the Fring site. Overall it's a must try!
