Ring2 Communications offers a range of audio and web conferencing tools at very reasonable rates. Their core business is reservationless audio conferencing. They have a cool feature called "controls tools" that can be accessed from the web or a Smartphone such as a BlackBerry or Windows Mobile.
Their latest release offers the ability to "blast" a call out to a list of participants with one click. This is great for emergency type calls or even for higher efficiency on everyday calls with a set group of people.
I have attached a few PDF's and anyone interested in learning more about our services can contact me at (608) 516-8396.
PDF #1: Audio conferencing
PDF #2: Web Control
PDF #3: User Guide