A conference call, also known as a teleconference, is a telephone call in which callers can talk to several people at the same time.
1. After making your Primary Call, Press the PLUS button on the screen
2. Type in the number you wish to conference into the call
3. Press the green phone button
4. Press the converging arrows next to the hold button, this will initiate the conference call
5. Press hang-up button to end both calls or the diverging arrows to split the call