Welcome to the 1pbx Blog

Keep up to date on all things VoIP.

Special emphasis on security and custom integrations.  Let us know if there are any topics you would like covered!

Monday, 21 October 2019 17:21

The History of the Private Branch Exchange (PBX)

Written by
The term Private Branch Exchange (PBX) refers to a telephone system independent of the Public Switched Telephone Network (PSTN). PBX systems process inbound and outbound call flows, giving the operator greater flexibility. For example, PBX solves a problem that burdened large organizations for decades. Via landlines, the service provider performs internal calls like any other…
Page 7 of 7


Braintree Certified

Braintree Certified Badge


ovh partner 280