While on a call and a second incoming call occurs, the screen gives you options (maybe 3cx Phone) to play a recorded message with options. (An IVR of sorts). 1) On the phone 2) Second call comes in 3) I see by caller id it is a call I m waiting for. 4) --> a) I can press <Reject> (currently an option) to goto Voicemail. b) I can press button "On a call. Please hold on just a minute. I want to talk to you." The call gets put on Hold. c) I can press button "On a call. If you want my voicemail press 1. If you want to hold press 2." Often I am on a call and someone I want to talk to calls in. I can't get off my current call and the other one ends up in VM. By time I call them back, they are on a call and we play phone tag.