the VoIP will be through T-Mobile@Home service. Whether or not it will use other services like Skype remains to be seen. This could be in fact the 8300. Looking at a picture the 8300 is the one Mr. Dotson was carrying. But when I inquired about it I was told it was the 8820. All these numbers are confusing, lol. T-Mobile will have the 8800 before the 8820, but only available for B2B initially.