What are the characteristics of walkie-talkies?

Compared with mobile phones, the characteristics of walkie-talkies are very obvious:
Does not rely on the Internet
​The communication process of mobile phones requires the support of various networks, including: wireless access network, bearer network, core network and external network. Only such a large and complex network can support smooth calls and good Internet experience for hundreds of millions of mobile phones. Students who are interested in network support can read Falling in love is not that easy, everyone has his or her mobile phone.

Communication between walkie-talkies does not require so much network. Two walkie-talkies that have established a communication channel can talk to each other as long as they press the call button. If multiple walkie-talkies are on the same channel, and one walkie-talkie starts speaking, all other walkie-talkies can receive the sound.

No call charges
The walkie-talkie is equivalent to an upgraded version of "talking basically relies on shouting". It converts human sounds into invisible radio waves. The voice and radio waves are free of charge. If you need to make frequent calls, a walkie-talkie can save a lot of call costs. After all, there is no need to go through the communication network, which saves a lot of "price differences" among middlemen. ps: Radio is free, but you still need to pay a certain fee for the occupied channels.

Get through in one call
When a mobile phone makes a call, the signal needs to be processed by the communication network: find the other party's mobile phone and ring it, and wait for the other party to answer before the two parties can officially talk. Although this process is already fast, walkie-talkies can make it even faster: as soon as the call button is pressed, the two parties can talk, reducing the waiting time before answering to a minimum. In specific scenarios that require quick response, walkie-talkies can greatly improve communication efficiency, allowing some things that require teamwork to be completed well under unified command and coordinated advancement.

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