It is essential to see the situation of the other sideMany of us do not care the situation of people on the other side. When calling over phone especially over mobiles, without considering other side they going on talking their issues or topic. This side person if sitting in either in house or in bus freely, they can hear but if driving or held up in some problem, their situation found annoyable.
Similarly many of don't switch off or mute the television or radio when they are receiving any phone call or guests coming or even other housemates are asking/telling something.
If the matter is serious, we can start with the word urgent