PBX is an acronym for Private Branch Exchange. It is a software solution that provides numerous benefits to its users. This solution is used in large organizations or call centers not only to connect all telephones from within the call center with each other but also to connect them to outside telephone network or PSTN. PBX can also be used to connect the computers inside the organization with the Internet. By using a PBX, not only the cost of installing independent connections is reduced, it also becomes easier to add or remove any lines from the internal network.

A hosted PBX is one which does not need to be installed at the call center but can be operated from the network exchange itself. The exchange of the telephone company uses switches for automatic call management. The cost of the purchase and installation of PBX in the call center is saved if a hosted PBX call center solution is used as the hosted PBX service charges are much lesser. Using PBX software allows the entire call center to be reached at a single number irrespective of the geographical location of the members of the call center. They might even work from home. Using a hosted PBX service can save a lot of maintenance effort and responsibility as well.