The different between Vivaz and Vivaz Pro are the Camera and also the Sliding Qwerty Keyboard (another differences also come but the most different between Pro and not Pro are the two we mentioned). Right now Skype (the VoiP services) are able to be used in Both Sony Ericsson Vivaz and Vivaz Pro.
By using skype in your Vivaz, you’ll be enable to make free skype to skype call and also make instant messaging with others Skype Phone Users. The Skype VoiP technology also make you able to make an international call with cheap budget compare to ordinary international call.
To download Skype for You Sony Ericsson Vivaz and Vivaz Pro, just visit skype.com/m via your Vivaz Internet Mobile Browser. Enjoy!