Zoiper IAX SIP VOIP Softphone

Zoiper is a FREE IAX and SIP softphone application for voip calls over 3G or WiFi. There are NO ADVERTISEMENTS. For support please visit: Zoiper softphone offers a simple user interface and superb audio quality for smooth Voice over IP experience. Contact us for whitelabel versions with your logo and company or for our VoiP SDK if you want to build your own solution or visit.