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Phone Systems Decoded – 8 Commonly Used Telecom Acronyms & What They Actually Mean

Have you ever spoken with a telecom salesman? If you have, you probably noticed they speak in what appears to be code. PRI . . . POTS lines . . . PBX . .  .VOIP? What does any of this even mean?

Lucky for you, we decoded some of the most common telecom acronyms so that even you can speak phone system.

 Most Popular Telecom Acronyms

  • VoIP – (Voice over Internet Protocol) is an alternative way of making phone calls. VoIP transmits the sounds you make over the standard Internet infrastructure. There are different styles of VoIP systems but the two most common are cloud based and on premise.
  • SIP – (Session Initiation Protocol) is an industry standard method of achieving VoIP.  Telephone Systems and many communications devices now have the ability to perform SIP protocol by way of trunk access (dial tone), video, etc.
  • PRI – (Primary Rate Interface) a multi-channel digital circuit that brings 24 lines of telephone system communication for incoming/outgoing dial tone. Essentially, it allows multiple inbound and outbound calls at one time. This is often a less expensive approach for a company that has more than 10 analog (POTS) lines.
  • PBX (Private Branch Exchange) This is typically a physical box on location at your business that holds all the programming required to make calls, transfer calls, host Voicemail and many other key functions.
  • POTS – (Plain Old Telephone Service) also known as analog telephone lines.
  • IP-PBX – (Internet Protocol-Private Branch Exchange) is a telephone system that integrates with Internet functionality such as VoIP and SIP services.
  • PSTN (Public Switched Telephone Network) is known as traditional telephone lines.
  • ISDN (Integrated Services Digital Network) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the PSTN.

Got more questions? No worries, check out our Telecom Phone Systems page and let us help answer some of your additional questions!