There are many ways to communicate to the outside of free or low cost.

Every time there are fewer excuses for not talking with friends or relatives abroad. Although Skype is still the king of free or cheap calls over the Internet, more and more applications and many programs that allow it. To complete, smart phones have advanced so that is also common to make international calls free or low cost from the iPhone, iPod Touch, Android, Windows Mobile and Nokia. Here, we present some of the most popular and recommended by experts to communicate with the world.

124 million in skype was the number of Skype users in the second quarter of 2010, each month. They talked about 95 billion minutes.

Fring: www.fring.com

Is a free application that allows voice and video calls to other fring users and Skype anywhere in the world, and also integrates instant messaging.

It also makes free calls to any smart phone (3G and Wi-Fi). It is available in stores applications iPhones, Android, and Ovi.

For international calls to landlines and cell phones are not smartphones, Fring charged 1 cent per minute.

Yahoo Messenger: www.messenger.yahoo.com

With this program, which is bottom of the page, calls are free PC to PC between Yahoo contacts. It also works for mobile phones with Android. If it’s between computers, all you need do is add the contacts you want and click the ‘Call’ button.

There, also, the option to receive calls on your computer. Yahoo Messenger, as most applications for Internet calling, where calls are charged from the computer to a landline phone or abroad.

Nimbuzz: www.nimbuzz.com.es

Can make free calls, chat and send pictures, messages and music to your contacts who are online in social networks such as Messenger, Yahoo, Gtalk and Skype. Works for PC and Mac and is discharged from the page above. Also available for mobile phones and download is free, but its creators warn that uses wireless Internet connection, so “provider fees may apply. If you’re not using Wi-Fi, we recommend you get a flat fee (unlimited) data provider, “explain. It also lets you share your location and displays your contacts on a map.

Google Voice: www.google.com / voice

Used to make international calls at low cost (and free within the U.S. only). Works for computers, also for iPhone, Blackberry and Android by downloading a free application.

By signing up, Google gives users a personal phone number and lets you attach the phone in your home and work, so when someone calls to those numbers associated with the program forwards the call to the number of Google Voice. It’s like having all the phones in a single number. For now, works in America but will expand to other countries.

View a tutorial of how google voice on the page http://www.google.com/googlevoice/about.html

Skype: www.skype.com

Allows free calls to other Skype contacts all over the world and it not only works for computers, mobile phones also. So you can download the free application for iPhone and Android and voice and video call using the 3G network or Wi-Fi. To call, contacts must be connected, but there is also the possibility to leave a voice message. Like other programs, Skype also has the option to call international cellular phones and with prices from 2 cents per minute.