EPABX (Electronic Private Automatic Branch Exchange)


An automatic telephone switching system within a private enterprise.


Analog EPABX:

(6 lines to 256 ports)

Based on SDM switching technology.


Digital EPABX:

(8 ports to 7500 ports)

Based on TDM multiplexed switching for non-blocking feature.

It’s configuration is selected based on the following:

  • No. of Tel lines
  • No. of Standard Telephone Extensions
  • No. of KTS Extensions
  • Whether to operate through an Operator Console or without it.


* Ports means it can be Standard Telephone Extensions or KTS Extensions or Tel Lines.