If our industry’s tech speak and acronyms didn’t confuse you enough, we also like to use different terms to mean the same thing. PBX (Private Branch Exchange) is also referred to as TDM (time duplex multiplexer) or Key Systems. These terms are often used interchangeably in our industry. Basically, a PBX is an on premise phone system which is not connected to a data network.
VoIP (Voice over Internet Protocol) is another form of phone system technology. VoIP means the voice is converted to data, packetized, and transferred over data network. VoIP can be on premise or it can also be hosted. VoIP is a more recent development than PBX in the telephony industry. However like most things, newer isn’t always better. We will go through the pros and cons, but I strongly encourage you to engage a reputable telephony partner to have a further discussion.
Difference Between PBX and IP PBX
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