Imagine you have an important query, you notice your counterpart is “on a call” “ presenting” or simply “busy” with back to back meetings so you do not want to disturb them especially if they are screen sharing and you also need to get back to what you are doing and cannot sit waiting for them to become available.

Why not add a call me back feature? You submit the call request, when your colleague finishes what they are doing they get a reminder that you requested a call back ASAP and will continue to get a reminder as long as they do not return your call.