VOIP PBX – THE EVOLUTION OF TELEPHONE SYSTEMS
Traditional, Private Branch Exchange (PBX) telephone systems have changed a lot since the spread of the internet. Slowly but surely, businesses are phasing out analogue systems and replacing them with IP PBX alternatives.
A traditional PBX system features an exchange box on the organization’s premises where analogue and digital phones connect alongside external PSTN/ISDN lines from the telecommunication company (telco). It gives the company full ownership, but is expensive to setup and most frequently requires a specialist technician to maintain, repair and make changes.
Upgrading to support additional internal extensions would usually translate to additional hardware cards being installed in the PBX system plus more telephone cabling to accommodate the new phones. When a company reached its PBX maximum capacity (either phones or PSTN/ISDN lines) it would need to move to a larger PBX, resulting in additional costs.
IP PBXs, also known as VoIP systems or Unified Communication solutions, began penetrating the global PBX market around 2005 as they offered everything a high-end PBX offered, integrated much better with desktop applications and software (e.g outlook, CRMS etc) and supported a number of important features PBXs were not able to deliver.
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