Expansion: Telephone is an important communication tool, which can not only facilitate people's communication, but also save time and cost. With the development of science and technology, telephone has become an indispensable part of everyone's daily life.
The history of telephone can be traced back to19th century, when telephone was used for short-distance communication. Now, the telephone can connect the whole world. The appearance of telephone allows people to communicate anytime and anywhere, regardless of weather, region and distance. For example, at home, at work or on the road, people can make phone calls as long as there is a cell phone signal.
However, the use of telephone has also brought some negative effects. For example, telephone harassment, fraud and interference often occur; Also, by phone, people may misunderstand each other's meaning and emotions; In addition, excessive use of the telephone may lead to inattention and affect work and life.
Therefore, we need to pay attention to some codes of conduct for the use of telephones. When we call others, we should respect their time and privacy and avoid unnecessary interference; At the same time, we should also control our talk time to avoid excessive use of mobile phones; Strengthen self-protection awareness and prevent fraud and telephone harassment.
In a word, telephone is an important communication tool, which can greatly facilitate people's life and work. However, we need to pay attention to norms and safety in order to better use the telephone as a tool.