What channels are there for cdma2000? Seek English abbreviation, full name and Chinese full name. thank you

Hello, first of all, thank you for your support to China Telecom. According to your description,

1. What is a CDMA mobile phone?

CDMA is the abbreviation of Code-DivisionMultipleAccess, which is a digital interface technology applied in business in recent years. It has the advantages of high frequency utilization rate and low power consumption. CDMA, which China Unicom will launch early next year, is a 2.5-generation technology. CDMA mobile phone refers to the mobile communication terminal based on CDMA network.

2. What new services can 2.CDMA mobile phones provide?

CDMA mobile phone can not only provide communication function and information service of GSM mobile phone, but also have high-speed wireless data transmission and multimedia function. The services it can provide mainly include: first, basic value-added services, such as call forwarding and information prompt; The second is voice mail service, such as mail, fax, news and other voice information; Third, short message service, such as weather, traffic, securities, advertisements, etc. ; 4. Wireless intelligent network services, such as virtual network and personal number identification. ; Five, wireless Internet services, such as web browsing, e-commerce, e-mail, online games, etc.

3. What are the advantages of 3.CDMA over GSM?

Compared with GSM mobile phone, CDMA mobile phone has the following advantages: First, CDMA mobile phone can be said to be a veritable green mobile phone, and its transmission power is very small (2mw), which is only 1/60 of the GSM mobile phone (power is 125mw) we are using now, even lower than the radiation power generated by TV screen; Secondly, CDMA mobile phone adopts advanced switching technology-soft switch technology (that is, switching is connected first and then interrupted), which makes the call of CDMA mobile phone comparable to that of fixed telephone, and there is no drop-off phenomenon of GSM mobile phone; Thirdly, using CDMA network, the investment of operators is relatively reduced, which reserves space for the downward adjustment of CDMA mobile phone charges; 4. Because of adopting the modulation multiple access communication mode based on spread spectrum communication, its capacity is 10 times higher than that of analog technology and about 4 times higher than that of GSM network; More importantly, CDMA based on broadband technology makes it possible to use video in mobile communication, thus making mobile phones move from narrow services such as calling and texting to broadband multimedia applications.

China Telecom's 4G is officially commercialized! Enjoy the world of 100 megabits. Tianyi 4G shares a better life. For more exciting content, please pay attention to the online business hall of Anhui Telecom. Please pay close attention to the latest preferential activities announced by Anhui Telecom's online business hall and official Weibo. Please keep asking questions. I wish you a happy life, thank you!