It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
VoIP PBX systems are useful solutions for establishing telephone communication in companies where offices are located in several places. This system allows connecting all the offices via one telephone network as it supports both local and remote extensions. Its developed features and opportunities make business communications more qualitative and reliable.