Free conference calling

I have already mentioned http://www.freemagicconference.com/ Magicjack's free conference calling service in a previous post HERE 

To use that service dial 305-848-8888
To create a new room press 2 then enter the room number.
To enter an existing conference press 1 then enter the room number.

Now I have come across another free conference service provided by Nettalk. http://www.freenettalkconference.com/conferencebridge
To use that service dial 305-740-1300
To create a new room press 2 then enter the room number
To enter an existing conference press 1 then enter the room number.