Do you still remember the two symbols [:)] and [<3]? For Xiaoku, it is full of youthful memories, and it carries too many emotions. 20 years ago, 2 and 3G began to become popular. Due to the slow network speed and expensive traffic, we still use feature phones to send text messag

Do you still remember the two symbols [:)] and [3] ?

is a full of youthful memories for Xiaoku, and it carries too many emotions.

20 years ago, 2 and 3G began to become popular. Due to the slow network speed and expensive traffic, we still use feature phones to send text messages (SMS). Friends and family are separated from each other. We rely on mobile phone text messages to maintain our continuous relationship, and the text on the mobile phone is very warm.

At that time, emoticon packages were not as rich as they are now, and people could intuitively understand the other person's psychology. In the past, I was afraid that the cold words could not express what I thought, so I used Arabic numerals, punctuation marks, and mathematical symbols to express happiness and joy.

So after evolution, more symbolic expressions were born, which are now also called Yanwen.

However, with the development of network and technology, 4 and 5G are becoming more and more accessible, free instant Internet access is popularized, and paid text messages are gradually withdrawing from the stage of history and are no longer as active as before.

used to send text messages, which was also called SMS, that is, short messages need to be forwarded through the SMS service center, which means that SIM card must be inserted. With its withdrawal, RCS enters mass life.

RCS is called converged communication, which can be regarded as an upgraded version of SMS, and it achieves a leap in business experience based on IP technology, supports more media formats and richer expressions. breaks through the limitations of text messages, can send video, audio, location and other content, and can realize mass messages, group chats, etc., and its functions are similar to the two popular chat software now.

RCS supports end-to-end encryption of , while SMS does not. This means that the security of SMS has been greatly improved. For example, all one-to-one text sent using Google information is encrypted, so they are private and secure and can only be seen by the sender and the receiver.

end-to-end encryption is one of the most confidential data transmission technologies recognized internationally. The communication software using this technology can only read information by users participating in the communication, which can well prevent potential eavesdroppers, including telecommunications providers, Internet service providers and even providers of the communication system, from stealing, tampering, and intercepting chat information.

In order to protect privacy, social software classes basically adopt end-to-end encryption technology, including foreign Telegram, Signal, WhatsAPP, domestic BF-Messenger, and bat encrypted chats.

Bat Encrypted Chat also has RCS technology, which means that users can send and receive high-quality photos and videos within the software, view real-time typing instructions and read receipts, name group conversations (capacity up to 50,000 people), add or delete contacts in group chat, and send text messages via Wi-Fi.

Android phones have long been on the track of RCS development, so Android Messages users will support end-to-end encryption. However, Apple refuses to adopt RCS and continues to rely on SMS, so if you want to experience end-to-end encrypted chat, you can search BF-Messenger and Bat Encrypted chat in the domestic app store.