1)   sharpVoice(tm) Client 6.0
sharpVoice is a internet telephony program that enables free PC-to-PC and inexpensive PC-to-Telephone voice conference calls even with slow internet connections.

 2)   Solution4VOIP VoipSwitch 2.0.0.955
Solution4VOIP (The VOipSwitch Solution provider) is a complete IP telephony platform using which you can offer a variety of services such as: wholesale Voip termination, device to phone (NAT support) , pc to phone, web to phone , calling cards, SMS/ANI/WEB callback , DIDs’ mapping , callshops, for details visit our website http://solution4voip.com

 3)   BeyondPhone 2.4.1.0
BeyondPhone is future of internet telephony. You can make substantial savings on every outgoing call. Call anywhere in the world from your computer. For high call clarity and low calling rates , for details visit our website http://beyondphone.com