Web, Audio, Video Conferencing & Collaboration Tools
Before the invention of the Internet, TDM (Time Division Multiplexing) was the only technology used to transmit phone calls. TDM is based on electrical circuits that are physically switched on the public switched telephone network (PSTN) owned by phone carriers.
Then came the Internet and later on in 1989 Alon Cohen (Israeli entrepreneur) co-founded VocalTec Inc., and is the co-inventor of the first audio transceiver that made VoIP possible. He is considered the inventor of Voice over Internet Protocol (VoIP) which is the technology for the delivery of voice communications and multimedia sessions over Internet Protocol. VoIP technology enabled the use of the Internet, instead of traditional landlines, to make phone calls by converting voice calls into packets of data that travel over the public Internet or private Internet Protocol Networks.
Premise Based IP-PBX refers to VoIP systems completely housed and managed at the customer site where the signaling is done with an IP Phone to the IP-PBX Server (In-house server) using the customer’s LAN. IP-PBX systems run on the company’s data network. The server and all the components of the system are managed and maintained by the end-user or outsourced through a maintenance contract. The main benefit of a VoIP phone systems is that they don’t have to be physically connected to the PSTN. A premise-based IP PBX system works with IP, SIP Trunks & SIP PRIs.