atcomsystems.ca/forum Forums Other TDM Phone Systems Vertical Telephones & Systems Summit CO Lines Auto Hold?

I am setting up my first summit 80. The problem is not actually auto hold, but it is close. I have my lines button mapped to 1,2 and 3. If I am off hook on CO 1, and press the button for CO 2, it puts line one on hold, then if I just hang up, its like it is doing a line to line transfer. How can I disable that. If I am on one line and push another, I want it to disconnect the first line.