Viber is the best voip application.
Yes and no. No, VoIP is not installed within the phone, however you can install a VoIP application yourself via Internet download. There are some free trial softwares for mobile devices online.
A VOIP mobile can be best described to a kindergartner as a way to make a phone call over the internet. This is the most basic way one can describe this type of device.
The best VOIP will be completely subjective based on your personal experience as well as the features you are looking for. With that in mind some of the top rated VOIP systems include RingCentral, Skype, Jive, and RingByName.
use mobile voip app and login with justvoip
The vphone is not a phone. Rather it is a VoIP application for mobile phones that allows one to make cheaper calls. It is available at thevphone dot biz.
You can also use VoIP using a mobile/cell phone.
A good place to learn about Windows mobile and voip is the blog voipguides.blogspot.com/ and voip.com has a ton of information as well.
Example of PC based VoIP are skype VoIP, Yahoo Messenger VoIP, MSN VoIP, and lot more of web browser online chat application.
Yes, Some VoIP services are applicable to PSP.
Yes, Mobile VoIP is compatible to any phone with internet connection capabilities.
Download Fring or Nimbuzz then install it on your mobile phone. Have a SIP based VoIP account like Onesuite VoIP which you can set it up on Fring. Connect to the internet (Wifi, 3G, etc) and voila you can make VoIP calls on your mobile phone.