In the past, the telecommunications market mainly provided regular phone lines or also called by people in the industry with different names such as internal switchboard, analog switchboard. When installing these lines, you usually only need to spend on hardware investments and maintenance costs but the features are not expanded.
In the trend of modern voip technology, the majority of users or businesses are moving to the IP PBX solution and often choose from a number of brands such as Yeastar, Panasonic, Grandstream, Nec ... to increase more. More convenient features, more flexible connection with branches.
However, depending on the needs and calls more or less, network infrastructure, you can choose the solution of analog or IP PBX.