Freeconference.com is great for small businesses
I've been using FreeConference for the last couple of years. The service has been very reliable. The teleconferencing service is free. You only pay for the long distance call. But since I subscribe to an unlimited calling plan, the whole things comes at no charge.
The access number is +1-218-844-3366. You then enter a unique 6 digit access code (any 6 digit code will do). Just make up any 6 digit code and give this "access code" to everyone that you invite to the call.
While you are on the call, you can enter a number of touch-tone commands as shown below:
