If we are referring to Browser phones here, I want to suggest FriendCaller app I have been using. I'm extremely happy and thought it might give others way out of their problematic Voice and data access apps. I tested it on quite many browsers such as Mozzila, Google Chrome, Internet Explorer, Safari, Opera Mini and it served all very well. Its calling rates are extremely cheap.. https://www.friendcaller.com/webphone/index.h tml It kind of did revolutionize the existing methods of all other VoIPs. Check this out
hope it might wash away so many dissapointments of many ovr here.