business VoIP
Business VoIP services are commercial-class versions of residential VoIP services that provide small and medium-sized businesses with advanced features and functionality such as private branch exchange (PBX) capabilities, conference calling, desk-to-desk calling, music on hold and automated attendants.
While residential VoIP plans typically feature a flat-rate pricing structure and allow for only one call at a time, most business VoIP and enterprise VoIP providers offer tiered usage plans and support multiple simultaneous calls.
As with all VoIP (or Internet telephony) services, business VoIP uses packet-switched telephony to transmit calls over the Internet as opposed to the circuit-switched telephony used by the traditional Public Switched Telephone Network (PSTN).
See "The Difference Between VoIP and PSTN Systems" in the Did You Know... section of Webopedia.
Also see the VoIP Meets WiFi article in the Did You Know? section of Webopedia.


