The reason is the distinct scenarios where the total duration is shown, basically: 1) in the 1 to 1 call scenario, 2) the call waiting scenario (which the previous code deals with) and 3) when the call is shown in the status bar (after clicking the device Home button) which you will find in the oncall_status_bar.css file. Yeah, probably too many and very distinct scenarios to reuse the same element. Once again, refactoring highly needed ;)