IP telephone exchange (IP PBX)
IP PBX is an electronic system that connects the telephone system within the company to an outside public telephone network as well as mobile networks. IP PBX allows audio and video communication and instant messaging (IM) through the tcp / ip protocol within the internal network, and also allows the output of the internal network to the public telephone network for telephone communication.
Thanks to the fact that most of the functionality of IP telephone exchanges included in the software, it is relatively cheap and easily add additional functionality. The interface for integrating analog telephone system to connect to traditional phone lines and the use of conventional analog telephones.IP exchanges that have enabled SIP (Session Initial Protocol), can be used for multimedia communication (voice and video calls) through the IP network. This communication uses advanced encryption techniques and proxy servers for the establishment of calls through the internet.