A private branch exchange (PBX) is a telephone exchange that serves a particular business or office, as opposed to one that a common carrier or telephone company operates for many businesses or for the general public. PBXs are also referred to as:

• PABX - private automatic branch exchange
• EPABX - electronic private automatic branch exchange

For up to date Hosted PBX service price quotations and VOIP phone model selection, please contact sales@gphone.com or call 703-584-4360.

Below is a list of Hosted PBX retail providers in alphabetical order.