1) Raketu- Pretty decent service which offers FREE calls to 42 countries. I am rating it higher than VOIPbuster/Discount for the very reason thats its not a clone and it uses a diff technology than skype. Skype uses Supernodes which can be vulnerable to hacking. I covered that issues in my blog earlier. Additionally it integrates with Yahoo, MSN messengers etc.
Benefits: Better technology, Clear Voice, 42 countries FREE, Integrate with other messengers Drawbcks- Haven’t found any yet.
2) Jajah : I tried jajah about 1 month back and with their FREE minutes i made calls to India. The difference between jajah and other VOIP providers is Jajah only allows you to make calls from your phone. That means You need to give your phone number and your calling party number before you can make a call. When you intiate a call Jajah first connect your phone. You pick up the call and then jajah connects to the other party.
Benefits: No software download needed. Just visit their site. No credits needed for free calls. Drawbacks: Have to use a legitimate number before calling. Cant use PC to make call.
3) Gizmo : Popularly known as ” Skype Killer”. This software lets you call anyone in more than 60 countries. The only downside is that you and other party both should be registered with Gizmo and should also register your numbers. I am sure that this project will be successful and in short time the daatabase of people will be built and then its a FREE calling world.
Benefits: Making calls is easier than ever, Killer Application interface, Drawbacks: Requires both parties to register their numbers with Gizmo.
4) Voipcheap – This is the original VOIPcheap and not the UK version of this company. Although VOIPbuster, voipcheap.co.uk uses the same software, i found this software more reliable and voice quality is of high level. This is an straight winner when it comes to making FREE calls worldwide. You can virtually call more than 50 countries on normal PSTN landlines and mobiles in singapore, USA, HK & Canada. With some hacks, you can call from countries which are not listed in FREE list but you have a work around. You need to check my blog for that.
Benefits: Clear voice, You can make calls from your PC. No need to buy any credits from them before making free calls. Allows PC or Phone to initiate call (via Directdial)
Drawbacks: really none.
5) voipraider/ voipbuster: All these companies belong to Betamax GMBH, a European company dealing in VOIP. They offer extremely low competitive rates to many countries but have almost zero customer service.
Benefits:1 or more additional countries (Thailand + mobile) on Voipdiscount. Drawbacks: No customer service. Change rate any time.
I hope this article will benefit you in making Free International Calls