Since Bell invented the first telephone in 1876, the telephone has gone through the development course of 130 years, and a * * * has undergone four technical updates. First generation phone: Manual or dial-in phone, which is the kind of phone you often see in old movies. Turn the handle a few times and then start talking. This should be the earliest telephone introduced in China. (Please give an example) The second generation telephone: pulse key dialing. In this era, people no longer need to use the telephone so hard, and they can easily dial by pressing a few numeric keys. The telephone of this era has existed for a long time. (Please give an example) The third generation telephone: caller ID telephone, which can know who is calling even if you can't hear the other party's voice, can be realized in this era, and can record and query missed calls and dialed calls. There are signs of intelligence at this time. The fourth generation telephone: cordless and multifunctional telephone. The concept of fixed telephone in people's hands has been broken, and fixed telephone can also make mobile phone calls. There are also mobile phones with intelligent performance that can record and manage multiple functions in the market. Imagine the future development of smart phones: 1, a smart phone with integrated business card scanning. In the future, smart phones will further strengthen the import function of contacts. Business cards commonly used in the process of business communication can be directly input into the phone by scanning business cards, which saves the tedious work of inputting numeric keys, improves work efficiency and objectively brings positive gospel to many middle and high-level business people. 2. The fifth-generation smart phone with CRM customer management function. At present, there are no customer service call centers in many service industries. If you buy a computer, CRM software and voice card, it is not only expensive, but also complicated to operate, and the computer needs to be turned on 24 hours. Therefore, in the future, the fifth-generation smart phone can be built with CRM, and at the same time, it can be combined with the background SMS platform to send text messages in groups. The cost is only between 1/20 and 1/5 of the cost of a small call center, and it doesn't need to be turned on 24 hours. The operation is very simple, and the operational level of business personnel is very low. Ordinary junior high school graduates can operate, and there is no computer virus problem. Therefore, it will be widely welcomed by many service industries, targeting at customer groups: catering, hotels, express delivery, ticketing, tourism and so on. 3. Smartphones are widely used in smart homes. With the continuous development of technology, smart phones will be further integrated with home. The high-sensitivity induction system will realize indoor multifunctional alarm, it will be combined with other electrical equipment in the home to automatically broadcast the status of electrical appliances, and it will also be combined with computers and mobile phones, so that users can control and enjoy information appliances through mobile phones at any time and place. 4. Smartphones may become a part of mobile phones through Bluetooth /WI-FI cordless technology. To sum up, the next generation of smart phones with 3C characteristics and unified communication capability has a very broad development prospect. According to the latest statistics of the Ministry of Information Industry in June 2006, at present, the national fixed telephone base is 365 million, which basically belongs to the third and fourth generation telephones. With the development of Internet and mobile communication intelligent network technology, people's demand for the next generation of intelligent fixed telephone is getting stronger and stronger, and the update upsurge of fixed network communication terminals is coming. The development of the fifth-generation smart phone will drive the development of related industries and have a strong pulling effect on the growth of the national economy.