A service provided by Jaduka (a company that specializes in the integration of telephony services with HTML-based applications), DukaUS enables the user to start group calls via the PC, using a simple interface.
The web conferences that you initiate this way can include up to five different participants.
You simply have to specify each guest and the application itself takes care of calling and inviting each one of them.
In order to use DukaUS, you must sign up beforehand for a Jaduka Labs account. This process is not only inexpensive, but it is also very easy to be complied with.
So far, only United States and Canadian telephone numbers are supported, and each account has a set number of minutes allocated per day. This fixed number is always the same: 30 minutes. If the conference timer reaches zero, calling using DukaUS is restricted until the next day, when the timer resets at 12:01 AM (USA Central Time).
DukaUS.com In Their Own Words
“Bringing People Together.”
Why DukaUS.com It Might Be A Killer
It provides a free teleconferencing solution that dispenses with the installation and configuration of any kind of software at all.
Some Questions About DukaUS.com
Will the service branch out in the future and support other countries? 
