When you are on the phone with another person, and you are changing what you are doing, and will need to get off the phone with them at a point you are already aware of, try to notify the person on the other end, well prior to your need, so that you don’t rush them off the phone- YOU are responsible for the environment you are taking the other caller into, and so try to protect them from a rushed end to the conversation. IT IS ON YOUR SHOULDERS- not theirs. They cannot know what or where you are, and its up to you to be smart about that.