Last year, Alan Masarek made news as he left Google to become Vonage’s new CEO.
Talk to two people at once with 3-way calling.
You call the first person, place them on hold, then call the second person. The first person then joins the conversation. The actual method for 3-way-calling varies from phone to phone and provider to provider.
3-way calling is an "older" and cheaper version of conference calling. Frequently, you can speak to more than two additional people at a time with 3-way calling. It's not a conference Barge-in is like reverse 3-way calling; with barge-in, an outside caller can join the conversation by barging in.