PBX Telephone Systems Explained
PBX or Private Branch Exchange is a private telephone system used in a company. This system has several outside lines which users can share for making outside phone calls. A PBX also connects the phones within the company to each other and also connects them to outside lines. Sharing line within a company means you can have a greater number of handsets compared to lines needed, thus reducing costs.
As a company you will need to purchase and install a PBX network and operate it from within the office. Unless you are very technical it is better to contact a provider to set this up in the office. Sometimes, these providers give the users some training and then leave the system to the company for their own operation. When a problem arises, customer support is usually provided by the supplier.