Dual-card dual-standby dual-mode smart machine

Dual-card:
Two long phone cards are available for mobile phones.

Dual waiting:
Dual-network dual-number online at the same time. From a global perspective, the coexistence of the Internet and the Internet is a reality, and the coexistence of 2G and 3G is inevitable. Therefore, the existence of dual-mode or multi-mode mobile phones is inevitable, the key to the success of dual-mode or multi-mode is that you do not need to switch over or be online at the same time. Dual-mode Dual-Wait implementation allows customers to accept new things, and does not need to change the original consumption and use habits, is conducive to the development of new customers.
For China Unicom, dual-mode Dual networks can bridge the two networks of China Unicom (GSM network and CDMA network) to complement each other and achieve global roaming, reversing the current passive situation in China Mobile's high-end communication market.

 

Dual Mode:
As the name suggests, the so-called "dual-mode" means to work in two network modes, which are GSM and CDMA, the so-called "GSM/CDMA Dual-mode mobile phone" means that the mobile phone can support both GSM and CDMA network systems at the same time or separately. It can be selected based on the environment or actual operation needs, which network technology can play a more important role, let the mobile phone switch to which mode to work. If in one mode, the quality of the mobile phone communication is not high or there are other bad communication phenomena, you can freely switch to another network mode. It actually expands the call frequency of the mobile phone and greatly improves the communication stability.
In some regions where mobile phone users are concentrated, dual-mode mobile phones are especially suitable, because dual-mode mobile phones can be flexibly switched between the GSM network and the CDMA network, so that the communication can always be maintained, in addition, it can receive signals at the same time, and then combine the received signals to filter out the noise signals and highlight the voice signals to enjoy high-quality speech. In addition, dual-mode mobile phones use broadband technology to support call transfer, call wait, third-party talks, caller number display, short messages, voice mail, and automatic roaming.
The appearance of dual-mode mobile phones will undoubtedly have the deepest feelings for users and will be the most practical at the same time, because dual-mode mobile phones are used for roaming through the GSM/CDMA network, the drop-down phenomenon will be greatly reduced, and the incoming and outgoing calls will be more free. At the same time, all the advantages of the two network technologies can be obtained, therefore, dual-mode mobile phones can ensure that mobile phone users can freely communicate with each other in 160 countries on five continents.

Smart phone:
It refers to a service provided by a user who has an independent operating system like a personal computer and can install software, games, and other third-party service providers.ProgramThrough such programs, we can constantly expand the functions of mobile phones and use mobile communication networks to achieve wireless network access ".
Simply put, a smartphone is a mobile phone that can expand the basic functions of the mobile phone factory by downloading and installing software like a computer.

Transformers version:
This is the name of a mobile phone dealer for sales promotion, but I don't recommend it because mobile phones with many joints are easy to break down.