What is the public network interphone
2023-02-22 17:55
What is the public intercom?
Private network interphone refers to the interphone that needs self-built signal channel and uses self-built signal channel to communicate.
The public network interphone refers to the interphone that uses the operator's network to make calls.
The transmission distance of the private interphone is generally from several hundred meters to several kilometers, and the communication distance is limited.
The public network interphone can make calls wherever there is an operator's signal. In theory, it can realize national and global interphone. Public network interphones generally support intercom, group call and group call, and can support up to 10 users to talk to each other and 50 users to initiate group call at the same time. The public network interphone can realize two-way transmission of audio and video, and can also carry out real-time management and remote control through the network.
However, the traditional private interphone can only realize one-way call function, and does not support group call. The public network interphone can be said to be a new type of wireless network communication product. It has brought new technological changes and application models to the communication field. It has truly achieved seamless communication across the country and completely broken the time and regional restrictions. In our daily life, we often use the public network to make calls, such as making phone calls, sending and receiving text messages, so we need the public network interphone to meet our needs.
In modern urban life, public network interphone is an indispensable communication tool.
So it is necessary for everyone to know what the public network interphone is? Through the introduction of this article, I believe that you have a new understanding of public network intercom.
