We're slowly moving away from regular phone calls and into the world of VoIP and SIP calling. Here are the best VoIP and SIP apps on Android.

The iPhone App can currently be downloaded for free and once Voip-Pal.Com has finished Beta testing on the PointsPhone Mobile™ BlackBerry App, it will also be available for free downloading.

Innovative VoIP service offers low cost, high quality international calls over the Internet via new Android app PR Newswire WHITE PLAINS, N.Y. and LONDON, ...

During a question and answer session following the iPhone Software Roadmap event on March 6h, a press member asked about the possibility of a VoIP (voice-over-IP) application for the iPhone.

Apple approves Vonage mobile VoIP app The Internet telephone service provider wins approval a week after confirming that the app's request for approval was being held up by technical issues.

VoIP apps like Goober’s offering can help mobile phone users avoid running up high charges on calls—and they can provide voice-messaging capabilities to devices like the iPod touch.

AudioCodes is a VoIP technology market leader focused on converged VoIP & data communications and its products are deployed globally in Broadband, Mobile, Cable, and Enterprise networks.

Businesses should look very closely at the fine print of their mobile VoIP service and know that there are other options available, many of which will be geared specifically for businesses.

In a recent PC World article, Microsoft claims that it will strictly forbid VoIP-focused applications from the Microsoft Windows MarketPlace for Mobile Store.

AT&T says the decision to support VoIP-over-3G from iPhone users us the result of a regular review of features and capabilities the company performs to keep its services attractive to customers.

South Korean telcos get OK to charge extra for mobile VOIP apps news Jul 02, 2012 2 mins Networking Unified Communications ...