What is a PBX Phone System?

PBX stands for Private Branch ExchangePrivate Branch ExchangePrivate Branch Exchange, which is a private telephone network used within a company. Users of the PBX phone system share a number of outside lines for making external phone calls.

All you need to know about Phone PBX
PBX Phone System

A PBX connects the internal telephones within a business and also connects them to the public switched telephone network (PSTN), VoIP Providers and SIP Trunks.

Cheap phone systems
One of the latest tendencies in PBX phone system development is the VoIP PBX, also known as IP PBX, which uses the Internet Protocol to transmit calls.

Phone pbx
Nowadays, there are four different PBX phone system options:

PBX
Hosted/Virtual PBX
IP PBX
Hosted/Virtual IP PBX
IP PBX is a software-based PBX phone system solution which helps accomplish certain tasks and delivers services that can be difficult and costly to implement when using a traditional proprietary PABX.

3CX is a good example of an IP PBX phone system.