Often times, when conducting an audio conference there will be lulls of silence between people speaking. As the host, you can avoid this silence by acting as a presenter. More specifically, by using various talking points to fill lin lapses in the meeting you can keep the meeting moving along, while also preventing you from wasting time and having to depend on others for ideas. Lastly, filling the lulls of conversation can also make participants feel that you are well versed and providing useful and/or relevant information.