WhatsApp introduced free calling between it's users a while ago and has been rumored to introduce video calling in near future. WeChat a competing China based instant messaging service has now introduced a new feature which will appeal to many, - a cheap VOIP calling feature allowing users to call domestic and international phone calls to cellphones and landliness across the globe.

Named WeChat Out, the feature is similar to Skype Out and Viber Out. WeChat is claiming their service to be cheaper with better call quality then the competition. WeChat is also offering a free trial credit of $0.99, which is enough for upto 100 minutes of international calls.

Everybody loves freebies, and we have shared quite alot of "free phone calls around the globe" services here on this blog. Today, we have something even more interesting then that, a service which not only allows you to make free phone calls "to-and-from" anywhere in the world but also hides you caller id when doing so - making it a perfect free method to play some prank with your friends anonymously without installing anything from your web-browser.

Usually, we need to purchase online VOIP minutes for free calling or spoofing our caller identification, but online service Call2Friends allows you both of these for free and with ease, all you require is a web-browser with "Adobe Flash Player" support to get started. Call2Friends is a modern telecommunication service that uses the latest technologies and offers a free and high quality communications to people all over the world. Not only can you call your online friends for free, it also offers free calls to any regular landline in various destinations. Users can also make use of there free SIP gateway facility to make free Internet calls from mobile phones, tablets or hardware VOIP phones from anywhere saving money in situations like international roaming.

Success of mobile VOIP application Viber has shown how popular free app-to-app VOIP calling can be, and how wonderful it will be if you get a weekly top-up for 100 minutes free international talktime added to this already awesome offering. New, mobile VOIP service maaii is offering exactly this to give there service the initial popularity push, an attractive 100 minutes free maaiiout minutes talktime every week to make free international calls to non-maaii landline and cellphone users from your iOS and Android devices.

I was eager to review Viber but waited for an Android version to get released, sadly Viber For Android is nowhere to seen - so here we have the review of currently available Viber For iOS.

Viber the free VOIP application for iOS (Android and Blackberry versions expected soon) allows users to call other Viber users anywhere in world for free using their 3G or Wi-Fi connection, the best part of this must-have utility is the sound quality which is simply "exceptional".

Viber uses your phones address book and is always in-sync with it, highlighting contacts that have Viber so you know you can call them for free. To get started all you need to do is, enter your phone number and the confirmation code received via SMS.

After successfully integrating Voice and Video Chat in Gmail Google has taken another step forward and is now offering free calls to and from Gmail itself. Integrating Google Voice into Gmail users will now be able to send and receive free calls to the U.S. and Canada with calls to other countries at very low rates right from their web-browser without installing anything (Apart from Google Voice and Video Chat Plugin).

We have reviewed several free VOIP service provider from time to time, Voixio is another such free ad-supported VOIP provider, Voixio offers an easy to use flash interface to make free VOIP and video calls worldover, before connecting the call Voixio displays an video advertisement, this is the most promising ad-supported VOIP service we have reviewed.