We have a Panasonic KX-TDA 100 phone system, using KX-T7625 phones. Trying to set up a way have Agent A transfer Customer to Agent B and have all 3 people on the line at the same time. I know about hitting "transfer" a second time, but that just toggles between Customer and Agent B. I know about "conference" but after all three are on the line then a transfer can't be completed. Any ideas?