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The PBX (Private Branch Exchange) telephone system has already established an amazing history beginning in the early telephone switchboard operator to today's sophisticated digital Internet IP PBX System . Several innovations still occur and telephone are becoming a lot more technologically advanced with additional features being added constantly. Today, subscribers are earning calls, delivering and receiving voicemails, emails and faxes using their phones and on the internet.

The whole telephone system revolution began many decades in a primitive way with operators connecting callers to numerous extensions using switchboards and cords.

The word PBX system meant a variety of devices with differing abilities. PBX system refers basically to some business telephone system involving multiple lines that has the capacity to connect both internally, between extensions, and also to an exterior public telecoms network.
 

The main reason for a PBX would be to route incoming calls towards the appropriate extension inside the office and also to share several phone or trunk lines between extensions. Even though the fundamental guiding principle behind the whole process of a PBX system has continued to be very similar, the technologies behind the systems have evolved tremendously through the years - reducing operating costs and simplifying the operational process.

There is initial hesitancy for world of business to simply accept the PBX systems regardless of the operational efficiency and price and time savings they provided. Within the 1990s PBX manufacturers began adding versatility for their systems which permitted expanding them by simply adding ports and card rather of beginning over with a brand new system. This infused fresh hope and confidence within the minds from the business proprietors and PBXs grew to become more acceptable.

The idea of PABX (Private Automatic Branch Exchange) came to exist within the 1960s. The PABX facilitated employees of the organization to create calls to each other inside the same premises or get linked to an exterior line with no need to undergo a receptionist. The PABX system also eliminated the requirement for a lot of phone lines.

The word PBX is now symbolic of Electronic Private Automated Branch Exchange (EPABX) and Automated Branch Exchange. PBX are designed for many phone lines into or from a specific location and is comparable to a main office exchange - though much smaller sized and independently owned. Advanced PBX systems can facilitate both voice lines and knowledge lines, route calls with other offices and also to the general public telephone network.