AT&T offers landline telephone service in many U.S. markets. Three-way calling is a pay-per-use calling feature that allows you to talk to different people at two different phone numbers at the same time. You can use this calling feature at any time, and AT&T will charge you a fee every time you successfully complete a three-way call.
Step
Complete a call to the first person following the normal procedure you would use to make an outgoing phone call from your AT&T landline telephone.
Step
Wait for the first person to answer the call.
Step
Place the first person on hold by pressing the "Flash" or "Hook" button on your phone.
Step
Dial the second person you want to talk to.
Step
Wait for the second person to answer the call.
Step
Press the "Flash" or "Hook" button on your phone to connect all parties. You have now successfully made a three-way call.
