The term "AirPhone" can refer to a few different concepts depending on the context, occasionally representing a colloquial misspelling or confusion with the security brand Aiphone, or pointing to historical in-flight commercial telephone systems once installed on passenger aircraft. Additionally, the name has occasionally been utilized by various independent consumer electronics accessories or novelty gadgets over the years. However, it does not designate a primary major mainstream telecommunications product line compared to established smartphone or intercom industry giants.