Hi Mike, you should see something like below when you click the Transfer button. You can then find the person you're transferring to and click the Warm Transfer icon. If the HUD or RC Phone app are not sufficient, I would invite you to try the Bridge Operator Console as an alternative. It can be found in the App Gallery here:
Thanks for the reply, but the warm transfer only allows me to talk to the person I am transferring to and the person i am transferring separately, but not at the same time. I would like to be able to merge the call, so all 3 of us are on the line at once and then i would like to disconnect all while the two remaining parties are able to remain and talk on the line.