Eagle Teleconferencing has an option called self mute. To access this function you push *6 on your phone at anytime during the call. When you do this, you will mute your line only. To reverse the affect of this action, simply push *6 again and it will allow you to be heard again. This is very useful when you are having a lecture with a small group of listeners. If you are planning on having a large group of listeners, you may want to consider using a different option Eagle offers called lecture mode, you may access this option by pushing *5 on your phone at anytime during your call. By doing this you will mute all the participants calling in under the callers pin number, and only the participants who called in under the moderators pin number can be heard. To reverse the affect, simply push * 5 again to open the call up again, but remember, to use lecture mode, you must have a moderators pin number, so ask the when you set up your call make sure you have a moderators pin number.