I love threads that actually solve a problem. Thanks, jones, for posting that you found a solution, so the rest of us will know how to fix this if it ever becomes a problem for us.The key is in the PLAN! It's not the phone. I just called ATT and I wasn't set up for conference calling (even though I should have been when I added the 450 minute plan in Janurary). After the rep did her thing I am now able to merge calls. It says "Conferencing" at the top. Thanks for the advice!