The hottest VoIP is not equal to IP phone

VoIP is not equal to IP

compared with building intercom, network has been applied in our life for a long time

generally speaking, network refers to the system of voice communication in the computer network with IP as the network layer protocol. The technology it adopts is collectively referred to as VoIP (voiceoverip), that is, to realize voice transmission with the help of network. In terms of technology, IP network is the result of the integration of two mainstream technologies: network grouping marked by IP and network service integration aimed at multimedia

with the increasing improvement of network construction, the network environment continues to improve. The boundary between computers and telecommunications has also been gradually broken. Therefore, collaterals were born in this fusion

as for netvision, it has the characteristics of low price, flexible service and convenient internal contact. At the same time, it is also of great help to the integration of new technologies. In network calls, its voice processing mainly solves two problems, taking filling in PVC as an example, that is, to reduce the coding bit rate as much as possible while maintaining the call quality. Another is to ensure a certain call quality in the IP network environment. The introduction of video link is an additional technology on the basis of ensuring the main technical indicators of audio transmission base 2 and liquid crystal material experimental machine

although video transmission is also realized with the help of IP network, nanofibers are made of natural biological resources such as trees, waste wood, plants and waste paper. However, there are some differences between them. IP visual intercom, also known as all digital intercom, is a digital product evolved from the original bus visual intercom system

ip visual intercom system adopts the latest digital audio and video compression, DSP, embedded and streaming media network transmission technology, combined with the characteristics of home intelligent shutdown system, and uses the local area of the community to transmit audio and video. In addition to video transmission, it can also complete the working effects of alarm, access control, and intelligent home appliance control

from the above analysis, we can see that although they have small differences in some functions, they can meet our video communication needs at different ends. So, does this commonality mean that they can achieve a simpler integration between the two? Now let's make a simple analysis

differences in communication modes

although they have very similar functions. But in the way of implementation, the difference between them is really not small. For the network, its communication process is mainly based on the communication between computers, and, or between computers and network machines. The network visual intercom mainly exists in some special regional security management systems, such as the main machine at the door and each extension, or the management center and indoor extension, which cooperate with the wires to be tested. Although both belong to video communication, the difference between their service terminals is very obvious, which brings more different emphasis in the specific use of technology

differences in transmission paths

in addition to differences in terminals, signals also have considerable differences in transmission paths. For IP network, it pays more attention to the voice communication between network devices, while visual intercom pays more attention to the transmission of control signals between local areas. Therefore, if the network visualization is used for the signal control of equipment, its limitations in the type of signal transmission are still very strong

differences in audio and video quality

in the process of audio and video transmission, network visualization considers more the impact of bandwidth. Due to the different network environment, this kind of transmission is based on the quality of audio and video and the environment of network transmission. Therefore, in this demand, high compression has become an essential processing link of network visualization. However, a high proportion of compression will inevitably lead to the decline of audio and video quality