Voice over Internet Protocol (VoIP) is a technology that enables voice communication over the internet instead of traditional telephone lines. It converts| iFax
The Public Switched Telephone Network (PSTN) is the global system of interconnected telephone networks that facilitate voice communication over landlines and| iFax
A Private Branch Exchange (PBX) is a private telephone network used within an organization to manage internal and external calls. It allows businesses to| iFax