What does public network intercom mean?
Public network walkie talkie, also known as PoC (Push to Talk over Cellular) walkie talkie overseas and national walkie talkie domestically, is a wireless intercom device that uses existing mobile communication networks (such as 3G/4G/5G and Wi-Fi) to achieve remote communication. Compared with traditional frequency based private network walkie talkies, public network walkie talkies have no distance restrictions and can achieve real-time communication covering the whole country or even the world as long as the device can connect to the network.
Advantages and disadvantages of public network walkie talkies:
Advantages:
1. Wide communication range: Thanks to the extensive coverage of public mobile communication networks, public network walkie talkies can achieve long-distance and cross regional communication, without the geographical limitations of traditional private network walkie talkies.
2. Instant messaging: Users can achieve one click instant messaging without tedious dialing operations, resulting in high efficiency.
3. Low deployment cost: No need to establish base stations or repeat infrastructure investments, using existing public network services.
4. Advanced features: Many public network walkie talkies support advanced functions such as text messaging, location tracking, SOS emergency calls, etc.
Disadvantages:
1. Network dependency: Communication quality is affected by current network conditions, and if mobile network coverage is poor or interrupted, communication may be affected.
2. Security and Privacy: During the communication process, data needs to be transmitted through public networks, and special attention should be paid to security and privacy protection measures.
3. Cost issue: Although infrastructure construction is avoided, using public network walkie talkies requires payment of network service fees and possible intercom service subscription fees.
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