A PBX (Private Branch Exchange) is responsible for the communication line
establishment between communication end points. For this purpose
SIP accounts and authentication are used. The end points attached to the certain
SIP accounts are called extensions of the PBX. These extensions can be physical
VoIP telephone devices, PSTN adapters, software telephone solutions or so-called
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Powerful server configuration
The PBX system can work effectively if you have a really powerful
startup configuration on it. You can set up rules for the number or order
of the phones that will ring when a number is called, or define special
features for some communication purposes like voice mail, etc.
You can also make connection towards the traditional wired and mobile
communication network (PSTN) by using a simple adapter that is connected to
the PBX. In this case you will be able to call any PSTN numbers from a
VoIP phone and vice versa.
You can create an effective company communication network by installing
a PBX system on your local area network. This will make your workers'
communication easier and free.
The virtual PBX extensions are built-in PBX modules that are not traditional
communication end points but serve some special purposes, for example,
voice mail, answering machine functionality or IVR server functionality.