User talk:Dan-nie

PABX (private Automatic Branch eXchange)
The PABX is the newer version of the PBX (private Branch eXchange). The reason that the PABX was made, was that the PABX was to slow and the PBX would cost you much time because he was not automatic. Also it would cost a lot of maintenens. So there was an automatic verion made the PABX.

The PABX is a faster and more capabel machine. The data commmunication speed is now as fast as ADSL (2Mbps). The speed of the PBX is comparible with internet over the telephone line (ISDN) 64bps.