Telephone PBX System Connects All the Telephones in Your Organization

PBX stands for Private Branch Exchange and it is a private network of telephones connecting different nodes inside a single company. All the telephones within an organization are interconnected to form a complete network. The telephone PBX system enables users to connect to each other within the system, and also make calls to external telephone lines. A number of outside lines are shared by all the users of the PBX for the purpose of making the external phone calls. The telephones are connected to the external PSTN or Public Switched Telephone Network, VoIP or Voice over Internet Protocol, and SIP Trunks.

The telephones in a telephone PBX system may use either the regular telephone lines, or the internet for making these phone calls. PSTN was used in the earlier years of the PBX system and nowadays, VoIPs are in vogue, since such networks have a number of additional features and benefits. You have 4 types of PBX systems available these days and they are:

·         PBX

·         Hosted/Virtual PBX

·         IP PBX

Using the internet to make telephone calls is far cheaper than the traditional telephone lines. A major advantage of using a PBX is that the telephone calls among the different nodes in the PBX are absolutely free. This helps cut down a lot on the telephone costs. Calls to external agents are charged at the usual rates. A single phone number is used for all the shared telephones. They are differentiated using the extension number of each telephone. There are several types of software available for this purpose, each offering their own features and benefits.