What is obsolete as it is 2 pieces home phone because if you don't have a large family, and use local call often. You do not need to use it anymore, because most people are smart but plain fono.
What is outdated is the second piece is a home phone because if you do not have a very big family and a lot of local calls. You do not need to use it anymore. But because most people have smart phones already.
What is outdated as second piece is home phone, because if you don't have big family and use local call frequently. You do not need to use it anymore. Because most people are smart phone.