Internet Protocol PBX (iPBX) systems applying standard protocols of the Internet, as a media transport for voice for companies ensuring smooth voice communication. iPBX systems can be used concurrence in the same network elements to share data networks systems, or can be applied in separate network. If iPBX system is sharing the same network (LAN), this system can be said or TeLANophy system.
IP PBX systems apply an IP telephony server for call processing purposes and provide gateways, offers the opportunity to monitor iPBX access to the public telephone network and other iPBX that is been part of the network to communicate. iPBX call analysis system provides advanced processing functions such as speed dialing, call forwarding, and voicemail that are easily integrate with the system.
iPBX systems mainly consists from IP phones, servers and gateways call, which owned and controlled by the company that uses system. VoIP Call management software is installed on your system iPBX allows a system administrator (possibly via a dedicated terminal or configuring a site an internal) to manage the whole system, add and remove accounts with other functionality utilities.
The server calls are performed by using coordinates IP telephone’s addresses to communicate with other devices. This allows the call to load server to, the IP Phone to another IP phone within the system for communication (internal calls) or public telephone network via voice portals.
There may be several bridges or gateways of different iPBX system that should be connected to PSTN (public switch telephone network). Normally, there is a gate iPBX voice system can be connected to the PSTN. The iPBX also has the possibility to communicate with other iPBX system located around the world. This long distance calls can be routed data networks (eg the Internet network), hence the total call cost can be achieved at low cost. If the voice data calls gateway reaches its destination, it is converted back to voice signals. For example, if a user chooses a phone number in New York, Berlin and access to the system iPBX a gate in Berlin, has been assigned an IP phone with voice mail gateway to Berlin to communicate. In this way, the international call for local call is made in Berlin.
System consists iPBX phone IP phones, network data processing system calls, and a voice gateway to PSTN. IP telephones convert sound into digital packets that are transmitted to the server call. For every phone has its own IP address information of the network. The server communicates with IP phones to call the same high speed LAN with computers communication network. When obtaining calls from PSTN, the call processing system that the search of the database to find the address associated IP telephone (data) address and the address, an IP phone incoming call alert. When calls from the IP-phone, I communicated the phone number to call processing system (server call). The system determines whether call is transmitted within the data network, or the voice gateway to connect a call to connect PSTN. This chart also shows that iPBX system may allow use of plot data network to a remote gateway for voice cost connection low public telephone networks provided at remote locations.
