An IP PBX (“Internet Protocol private branch exchange”) is a system that connects telephone extensions to the public switched telephone network (PSTN) and provides internal communication for a business.

The system has IP connectivity and may provide additional audio, video, or instant messaging communication utilizing the TCP/IP protocol stack. An IP PBX system connects system, connects telephone extensions to the public switched telephone network and provide communication for your business.

IP PBX is primarily a software hosted on a regular desktop or server as per the requirement demands based on the expected traffic & criticality.

IP PBX usually is deployed primarily as inbound and outbound call center solutions for large corporate and commercial cloud telephony operators worldwide cloud communications.

As IP PBX is software, functions and features can be designed based on the customers’ requirements such as conference calling, XML-RPC control of live calls, interactive voice response (IVR), TTS/ASR (text to speech/automatic speech recognition), PSTN interconnectability supporting both analog and digital circuits, VoIP protocols including SIP, Inter-Asterisk eXchange, H.323, Jingle and others.